5: Data Recovery:

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5: Data Recovery:

SoftPerfect File Recovery is a free and simple tool for restoring files and rescuing data that was accidentally deleted from hard disks, USB flash drives, CF. In computing, data recovery is a process of salvaging inaccessible, lost, corrupted, 4 Remote data recovery; 5 Four phases of data recovery; 6 Restore disk. Steps to recover data from RAID 5 · 1. Connect the array disks to your computer as independent local disks. · 2. Launch the Diskinternals RAID recovery software.

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Top 5 Best Data Recovery Software in 2021

5: Data Recovery: - that

Top 5 Free Data Recovery Software

Data can be lost from your computer hard disk drive, flash drive, USB drive, memory card, or other storage devices for different scenarios, such as deletion, formatting, virus attack, or system error. Once files are lost, you can try to get your back from backup folders, recycle bin, or Trash. If all these simple solutions cannot help you retrieve data back, you will need a free data recovery software.

  • Recover lost files from preview backup if you have;
  • Recover deleted data from Recycle Bin (Windows PC) or Trash (Mac) if they haven't been emptied;
  • Get a free data recovery software.

Sometimes, the first two solutions are not as useful as we expect on most occasions. We would like to recommend a free data recovery software for help. In this article, we will list the top five free data recovery software for you. Each data recovery can help you to retrieve your deleted or lost data back for free.

  1. Recoverit Free Data Recovery
  2. Recuva
  3. Undelete 360
  4. Wise Data Recovery
  5. Pandora Recovery

Top 5 Free Data Recovery Software

1. Recoverit Free Data Recovery

free data recovery

Your Safe & Reliable Free Data Recovery Software

  • Recover lost or deleted files, photos, audio, music, emails from any storage device effectively, safely and completely.
  • Supports data recovery from recycle bin, hard drive, memory card, flash drive, digital camera, and camcorders.
  • Supports to recover data for sudden deletion, formatting, hard drive corruption, virus attack, system crash under different situations.
  • Recoverit Data Recovery Free only supports to recover 100MB data.

How to Recover Deleted or Lost Data with Recoverit Free Data Recovery

Download Recoverit Free Data Recovery on your computer, launch it, and follow the next simple steps to recover your data back.

Step 1: Select a location where your data been lost, click the "Start" button to start scanning data.

select a location

Step 2: Recoverit free data recovery will start a quick scan to search deleted files.

scaning lost data

Step 3: After the scan completed, you can check all recovered files. Preview some recoverable files like images (JPEG, JPG, GIF, PNG,etc.). Select your data and click the "Recover" button to get your data back.

preview data and get data back

Note: Please don't save your recovered data to the damaged hard drive, select safe storage to avoid data loss again.

2. Recuva

free data recovery program

Recuva is a famous free data recovery software specially designed for Windows. You can use its Wizard mode or manual mode to restore lost data from your device. The Wizard mode let you customize search type to "All Files", "Picture", "Music", "Documents", "Video", "Compressed" or "Emails". Then you can set the search location to everywhere on your computer. See Recuva alternatives here.

Pros:

  • 1 Powerful wizard mode with a detailed guide;
  • 2 Detailed states of found files will be shown in the window: recoverable or unrecoverable;
  • 3 There is a handy version for you to install it on a USB drive or an external hard drive;
  • 4 It's free, and there's no functional difference between the free version and paid pro version;
  • 4 All Windows OS supported: Windows 8, Windows, Windows 2008 Server, Windows Vista, Windows XP, Windows 2003 Server.

Cons:

  • 1 Not all original file names are available. You can only view some of the originally found file names;
  • 2 Files are not sorted in file types in manual mode;
  • 3 You can only preview some of the pictures.

3. Undelete 360

free data recovery software

Undelete 360 is a user-friendly and useful utility that suits for all versions of Windows and Windows file systems. It effectively recovers files lost due to many reasons like intentional or unintentional deletion, software or hardware failure, Trojan infection, or even unexpected system shutdown. You can sort found file by "Type" or "Folder". You can tell how damaged the file is according to the "Status" column in the window.

There is a paid professional version of the program. You can't use the "Filter" option as well as sort file in the "Folder" category, the free version is still a reliable and powerful data recovery tool for you to restore your lost data.

Pros:

  • Amazingly fast scanning speed
  • Clear states of found files are displayed. All found files will be noticed in red "Overwritten" and green 'Very Good" status.

Cons:

  • Many functions in the window are not available, such as "Wipe Files", "Group By Folder" and "File Preview". You need to upgrade to the professional version to activate them.
  • Not all files are listed with original names. Sometimes it would be hard for you to get what you want to retrieve.

4. Wise Data Recovery

recover data with free software

Wise Data Recovery is a tiny and fast free data recovery program that runs on Windows PC. The really clean interface of the utility helps you to recover deleted pictures, videos, or audio files within several simple clicks. The program's clean menu makes it rather simple to find and select the exact file you want to recover.

Pros:

  • This is a tiny utility with an easy-to-use interface and fast scanning speed;
  • The recoverability of found file will be displayed in "Good", "Poor", "Very Poor", or "Lost" status;
  • The last-modified time of lost data will be displayed in the program window.

Cons:

  • You'll not be able to preview found files;
  • Found data is listed in a physical directory other than in "Folder" or "File Type" categories.

5. Pandora Recovery

data recovery for free

Pandora Recovery is a free data recovery software that recovers lost files from NTFS and FAT-formatted volumes. With it, you can recover pictures, videos, audio files, or documents.

What makes it so special is that you can browse the hierarchy of existing and deleted files, or you can use the search functionality to find a deleted file if you remember file name, file size, file creation date, or file last accessed date after scanning. You can preview both image file types and text file types before recovering them.

Pros:

  • Offers different scanning options: "Browse scan" and "Surface scan";
  • Wizard Mode with detailed instructions is available;
  • Recovers Archived, Hidden, Encrypted, Compressed files
  • Quick Viewer allows you to preview image file types and text file types;
  • Nicely-designed searching features

Cons:

  • Files are not sorted in file types. You need to use the "Search" function frequently to get what you want;
  • The utility doesn't support all file types;
  • The interface is not very clear that it might be a little bit difficult for a newbie to use it.

Conclusion:

All free data recovery programs in this list are reliable, and they're good enough for normal data recovery requirements. Now that you have so many free data recovery software in option, it's time for you to select the most suitable to restore your deleted files now!

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7 Best Data Recovery Software for Windows

In addition to recovering individual files, MiniTool specializes in complete partition recovery. It is easy to use, making it ideal for users with little experience in data recovery.


MiniTool Partition Recovery

MiniTool Partition Recovery, November 2021


The interface of Minitool Photo Recovery provides a three-step data restoration process designed for use by any user. It recovers deleted files from many types of storage devices including hard drives and SD cards. The tool organizes found files by extension type, making it easier to find the items you want.


MiniTool Previous Recovery Result Option

MiniTool Partition Recovery, November 2021


The "Previous Recovery Result” feature enables multiple recoveries to be performed based on a single full scan of a device. You can scan once and then perform an organized recovery of specific file types at your convenience. Minitool offers recovery of many different file types including all popular image formats. One drawback to the tool is the inability to minimize the window while the program is operating.


Pros:

  • A bootable version is available
  • Fast scanning speed
  • Scans damaged DVDs and CDs

Cons:

  • Poor preview functionality
  • Cannot mount recovery results

Price:


For Personal Users:

Trial versionRecover up to 1 GB data
Personal Monthly Subscription$69.00
Personal Annual Subscription$89.00
Personal Ultimate$99.00

For Business Users:

Business Standard$119.00
Business Deluxe$199.00
Business Enterprise$399.00
Business Technician$499.00

Limitations on the free/trial version: 1 GB recovery possible with the free version.


System requirements: Windows 2000, XP, Vista, 7, 8, 8.1, 10, 11 / macOS 10.11 - 11.0.


Supported file systems: FAT12/16/32, exFAT, NTFS, NTFS5, ext2/3/4, HFS+, ISO9660, Joliet, UDF.

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Data Recovery From Damaged RAID 5 Array

This blog provides the best ways to recover data from damaged RAID 5 Array. We have compiled information about RAID 5, including an overview of RAID 5 and the reasons for RAID 5 failure. We’ve also shared how you can get back the data stored on it using a RAID recovery tool.Get the tool now from below download button!

Free Download Button

Redundant Array of Independent Disks (RAID) is a data storage virtualization technology. In RAID, multiple physical drive components are combined into one unit to reap the benefits of data redundancy, better performance capacity, and reliability. The RAID level varies by the number of disks and is assigned specific alphanumeric names, which are in-between “0 to 10”. These numbers indicate the particular array level. The higher the number of RAID array, the better the protection you will get against logically damaged drives, drive failure, unrecoverable read errors (URE), and other problems.

RAID 5: An Overview

RAID 5 is the most robust storage solution amongst all RAID levels. It typically consists of a minimum of three hard disk drives. However, it can work with up to 16 disk drives. The data blocks remain striped across all the disk drives. On one drive, there is a parity checksum of all block data. The parity information doesn’t remain stored on one specific drive. It is also distributed across all drives, which means it works as a backup for all the other drives. In case, if one drive gets logically damaged, the data remains safe on the other drives and you can easily retrieve it with the help of a RAID data recovery tool.

What are the Causes for RAID 5 Damage?

Though RAID 5 has good fault tolerance, it may get logically damaged due to malicious attack, accidental formatting, file deletion, faulty system configuration or corruption, etc. In a scenario where one of the disks fails, the information will remain available on other drives because of the parity. If there will be extra disks available to the array, they will automatically replace the damaged one. Thus, it is considered the most common secure RAID level as it provides better data protection despite RAID 0, (striping) and RAID 1 (mirroring).

Other reasons that contribute to RAID 5 damage:

  • The simultaneous failure of multiple drives’ at once
  • Re-establishment of RAID 5 Array with one failed disk drive
  • Illogical configuration of RAID Volume
  • Malfunctioning of Raid controller
  • Corruption in the RAID controller
  • Unexpected power breakdown/surge
  • Virus or malicious attack

Recover Data from Logically Damaged RAID 5 Array

All RAID controllers and configurations are different. You may check the disks and replace the faulty one with a new one. In case of virus attack, corruption, formatting or file deletion, you may recover data from the damaged RAID 5 array with the help of a RAID data recovery tool such as Stellar Data Recovery Technician. This easy-to-use DIY software can retrieve the lost or deleted documents, photos, videos, audio files, emails & more from RAID drives. It can efficiently extract lost or formatted RAID logical volumes. It can detect critical RAID parameters and reconstruct virtual RAID to retrieve data from a corrupt, broken, or failed RAID 0, RAID 5, & RAID 6 arrays.

Follow the given steps to recover the data:

Download, install, and launch Stellar Data Recovery Technician software.

Free Download Button

a. Select ‘Everything’ from ‘Select What to Recover’ screen to specify the data you want to restore. (See Image 1)

b. On ‘Recover From’ screen, select ‘RAID Recovery.’ (See Image 2)

c. On the next prompt, choose all the parameters as available in the original RAID. (See Image 3)

d. You will have an option to rebuild RAID. Scan and restore data in the accessible form, and save the recovered data to the desired location.

e. Once you recover data from RAID 5 array, you can rebuild the array.

What are the benefits of using RAID Data Recovery Tool?

  • Be it a hardware-based or a software-based RAID without a hardware controller; a RAID data recovery tool can extract the data effectively. The tool uses powerful algorithms for automatically matching the patterns and recognize the RAID parameters. It creates an image of the hard drive for quick and secure data recovery.
  • The software is efficient at rebuilding portable RAID even if the parameters set to the RAID configuration are unknown. After selecting the ‘Don’t Know’ checkbox with specifying the possible values for Parity Order, Strip Size, Parity Delay, and more, it will reconstruct the RAID.
  • It enables you to find even the lost or undetected Windows drive partitions and RAID volumes. You can use the ‘Can’t Find Drive’ feature to retrieve the data. If you can’t see RAID volume after reconstruction, select the physical disk and scan it to locate and scan the volume.

Is there any way to recover data from RAID 5 array with 2 Failed Drives? What are the possibilities?

The configuration of RAID Array certainly offers sufficient data redundancy and boosts the data performance. Sometimes there is more than one disk experience failure in RAID 5? How to get back the data in such a situation?

The first course of action you should take is to recover the data from RAID 5, and then rebuild RAID with the same configuration, followed by uploading the data to the rebuilt RAID 5. You may read this guide to recover data from RAID 5 with 2 disk failures.

Conclusion

Certainly, data recovery from failed RAID 5 array can sure be quite challenging. Regardless of the reasons, RAID 5 array may damage or fail anytime, leading to a data loss situation. You may try replacing the faulty drive or rebuild the RAID to recover data. However, as reconstructing RAID requires high-expertise and not all RAID users are well aware of the process, the safest way for data recovery is to use an efficient RAID data recovery tool, such as Stellar Data Recovery Technician. This software not only retrieves the data from damaged RAID 5 array but also rebuilds portable RAID.

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RAID 5 Data Recovery: A Step-by-step Tutorial For You [MiniTool Tips]

Languages: 日本語

Summary :

RAID 5 data recovery

RAID 5 is a common RAID setup used frequently in small businesses and other organizations. Like other storage devices, RAID 5 could be corrupted due to different reasons. Once a RAID 5 crashes, data saved there will be put in danger. Now, I will show you how to perform RAID 5 data recovery easily and quickly. Then, tips on how to rebuild a RAID 5 will be given to you.

What Is RAID 5 Data Recovery

RAID (Redundant Array of Independent Disks) actually refers to a data storage virtualization technology which puts multiple physical disk drive components into one or more logical units. Three main purposes of creating a RAID are data redundancy, fault tolerance, and performance improvement (or the combination of them).

Tip: How to recover data from a virtual disk?

Common RAID schemes or data distribution layouts are RAID 0, RAID 1, RAID 5, RAID 0+1, etc. The balance between performance, capacity, reliability, and availability, is different in different RAID levels.

Once you find your RAID is corrupted, you should start to recover data from RAID without any delay. The following content focuses on RAID 5 data recovery only; data recovery from other types of RAID is essentially the same.

RAID 5 data recovery

The following things need to be identified when you need to recover data from RAID:

  • The number of disks that have been used
  • The type of parity used in the RAID array
  • Disk sequence and block size
  • The offset pattern

The RAID 5 partition recovery can be completed as long as the data is found completely and the RAID parameters are set correctly.

RAID 5 Failure

The biggest advantage of having a RAID 5 is: the array will continue to work even when there is one disk in RAID 5 that fails since the parity information is allocated on different drives; this will not cause any data loss.

Situation 1:

If more than 2 drives are failed in the same RAID 5, the array will be broke and data will be put in danger. The array rebuilding requires much time and it is likely to bring drive failure, so you may witness serious disasters during the process. What’s more, it needs to read data from all the disk drives involved when the RAID 5 array is rebuilding; this may result in a second drive failure and the entire array loss.

Situation 2:

If you try to force the array back online when there is one drive failed in RAID 5, the array tends to fail. Despite the fact that RAID 5 can continue to work when one disk is failed and there are most RAID 5 controllers, the force online feature may ruin everything. If the failed disk has been pushed back online by this function, the whole array will be corrupted immediately.

In both situations, you need to follow the steps given below to recover data from degraded RAID without hesitation.

Recover Data from RAID 5 with 2 Failed Drives

Can RAID 5 Lose 2 Drives

All data saved on the disks contained in a RAID 5 will be available (due to parity) unless the disks get failed suddenly.

Can I recover a RAID 5 array if two drives have failed?

I have a Dell 2600 with 6 drives configured in a RAID 5 on a PERC 4 controller. 2 drives failed at the same time and according to what I know a RAID 5 is recoverable if 1 drive fails. I'm not sure if the fact I had six drives in the array might save my skin. I bought 2 new drives and plugged them in but no rebuild happened as I expected. Can anyone shed some light?- asked by bonga86 on serverfault.com

How many disks can you lose in RAID 5?

  • If only one of the disks fails, it is easy to recover data from single RAID 5 disk since the reconstruction of RAID 5 will start immediately whenever the hard disk failure is detected.
  • In contrast, if two or more disks are corrupted at the same time, all data will be lost.

That is to say, the RAID 5 can survive if there is only one disk damaged. Once you find two or more disks are getting into trouble, you should carry out data recovery from RAID 5 at once.

How to Recover Data from RAID 2 Disk Failure

If you have a single or multiple disks failed in your RAID 5 and the disks contain important data, you need the help of RAID data recovery software.

A program from MiniTool® Software Ltd. called MiniTool Power Data Recovery is regarded as the best RAID recovery software by most users (it can be the good recovery software for RAID 1, RAID 5, and other types of RAID). It can help you recover data from both crashed disk and disks with problematic partitions.

MiniTool Power Data Recovery
  • You should make sure that the configuration tables of the RAID are functional. If you run into the breakdown issue, please fix it properly before you start RAID data recovery.
  • If you want to recover data from a drive in RAID 1, you only need to make sure the disk works well.

How to get files off a RAID hard drive:

Step one: get the setup program of MiniTool Power Data Recovery from the reliable link and save it on your computer.

Free Download

Step two: run the setup program to finish the installation process and make sure your failed RAID disk is connected to this PC.

Step three: launch the RAID recovery software and select the proper function from the left pane.

  • Please keep This PC selected if you want to recover files from existing hard drive partitions.
  • You should select Hard Disk Drive to recover data contained in a deleted/lost partition.
select the proper function

Step four: double click on the partition/disk that includes the data you want to get back to start drive scan.

Step five: more and more files will be found by the software and you should choose the ones you really need.

more and more files will be found

Step six: click Save to choose a storage path in the pop-up window. Then, click OK to confirm and wait for the recovery process to complete.

Please note:

You will see the following prompt window when clicking on Save. It indicates that you are using the trial edition of software which only allows you to scan the disk and preview the found files for free. If you need to recover data with it, you’ll need to upgrade to the full version by clicking on the Upgrade Now button.

upgrade to the full version

This method also works when you want to recover data from RAID 0, RAID 1, RAID 0+1…

You should take the following things into consideration when you need to carry out RAID data recovery:

  • Can you really afford to lose the data contained in RAID forever?
  • How many drives do you have in the RAID array?
  • Do you know clearly the order of disks in RAID?
  • What are the possible causes of the RAID failure?
  • Is the recovery software you choose capable of recovering data from RAID safely?

When the recovery work is done, you should continue to rebuild the failed RAID 5.

Click to see how to recover a RAID 5 single-disk failure.

Rebuild Failed RAID 5 Yourself

One of the most important reasons why RAID 5 is so popular is that it is tolerant of a single drive failure.

  • Once a certain disk failed, RAID 5 will start to rescue data from the entire RAID array by taking advantage of its parity function. In this way, it can calculate the missing data.
  • Once there are two or more disks failed, you should hurry to recover data from RAID 5 by using the above method.

When the data recovery is finished, you should try to rebuild the RAID 5. The following actions could help you increase the success rate:

  1. Turn off your system the moment when you hear weird noises coming from it, so as to prevent further damage.
  2. Analyze the possible factors causing such failure and evaluating the condition of the disk drives carefully.
  3. Remember to put the disk drives in order when you remove them from your array.
  4. You can’t be too gentle when moving around drives getting from RAID.

How to Rebuild RAID 5 without Losing Data

How long does it take to rebuild RAID 5?

Before the rebuilding process, you may ask how much time is needed to complete the process. Actually, there is no definitive answer. The more drives you have and the more capacity you add, the more time you need to rebuild the RAID.

The RAID rebuild time is closely related to two factors: the quantity of data saved on the RAID disks and the capacity of the entire RAID. It is very important for storage administrators, especially enterprise administrators.

How to rebuild with a single disk failed:

  1. Shut down your device until you know what is going on exactly.
  2. Take out the failed drive and replace it with a new drive of the same capacity.
  3. Just wait since the RAID will rebuild itself.

There’s a great chance that you experience a second drive failure during the rebuild process, so you should be alert while RAID is rebuilding. The failure of both another drive and the controller is going to result in a failed rebuild process.

How to rebuild with 2 or more disks failed:

  1. Recover data from RAID by using the method introduced in the previous part.
  2. Make sure all the original drives are here and label them in order.
  3. Send your RAID to a professional recovery company and it will help you get back on track.

Cautions

You should pay attention to the following things to prevent data loss when RAID has been rebuilt successfully.

  • Do not create any new files or folders on the disk included in the failed RAID.
  • Make an image of the RAID structure in case of any unexpected accidents.
  • Create a backup of the disks (or at least essential files) on a separate volume to ensure security.
  • Run CHKDSK or use FSCK tool to check for errors when necessary.
  • Do not modify (add, move, or delete) data casually.

Here’s how to recover data lost after CHKDSK:

recover data after chkdsk thumbnail

CHKDSK Deletes Your Data? Now Recover Them In Two Ways

Does CHKDSK utility delete your important data? Here are ways to help your recover CHKDSK deleted files in few steps.

Read More

What Is RAID 5 Used for

RAID 5 is one of the most common RAID configurations; it adopts disk striping with parity and consists of at least 3 hard disk drives (at most 16 disks). In a RAID 5 array, you’ll find the data and parity are allocated evenly across the disks contained in the array (they won’t be written to a fixed drive). The data of one of the other data blocks in RAID 5 can be recalculated by the computer using the parity data. That explains why RAID 5 can continue to work after a single drive failure.

disk range

Thus, RAID 5 is regarded as one of the most reliable RAID schemes. It greatly improves the bottleneck problem caused by parity data storage.

  • The advantage of RAID 5 when compared to RAID 1 and RAID 10: it has more usable storage.
  • The performance of RAID 5 is almost equal to that of RAID 0.

Though RAID 5 can be achieved by virtue of software, it is not advisable. A hardware controller is better since extra cache memory can be used on the controller for the sake of improving write performance.

How Does RAID 5 Work

What is striping? It actually refers to storing consecutive segments of data to different disks. This is a good way to get better throughput and performance. Disk striping, together with parity, offers RAID 5 with redundancy and reliability. The benefits of RAID 5 are mainly come from disk striping and parity.

In RAID 5, it is parity, not the popular mirroring, that provides data redundancy. The parity will be calculated by the system and written into the corresponding drive every time new data is written into RAID 5.

What’s the difference between RAID 5 and mirroring?

  • In RAID 5, the system will start to rebuild by using the parity data when a drive is failed.
  • During mirroring, multiple copies of data will be kept in different volumes at the same time in case of sudden failure.

Data stored on any two drives can be put together to equal to the data stored in a third hard drive after data has been kept on each drive. In this way, even a single drive is failed, RAID data are not in danger. Therefore, disks in RAID 5 are hot-swappable; the failed hard disk can be removed and replaced by a new drive without downtime.

Conclusion

Combining efficient storage, high security, and wonderful performance together, RAID 5 becomes an all-around system. RAID 5 is a good choice for file and application servers which contain limited data drives. It is also important to individual users, enterprises and many organizations. As a result, RAID 5 recovery is important since the loss of data on RAID 5 could bring terrible influences.

Whenever you find your RAID 5 is failed (going to fail), you should carry out RAID 5 data recovery firstly; then, rebuild RAID 5 yourself or by hiring professionals when necessary.

ABOUT THE AUTHOR

Sarah

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Position: Columnist

Sarah is working as editor at MiniTool since she was graduated from university, having rich writing experiences. Love to help other people out from computer problems, disk issues, and data loss dilemma and specialize in these things. She said it’s a wonderful thing to see people solving their problems on PC, mobile photos, and other devices; it’s a sense of accomplishment. Sarah likes to make friends in life and she’s a huge music fan.

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There are many free data recovery software products available on the Internet. Some products are freeware while others offer free trial downloads of the tool for evaluation. We’ve put together a list of the 5 best data recovery tools of 2021 that can be downloaded and tried for free.

Keep in mind that this is an evolving list – it was originally published earlier and is constantly updated. We’re actively working on more data recovery software testing and research, so expect this guide to change throughout the year.

1. Disk Drill Data Recovery (Windows & Mac)

Disk Drill Data Recovery is an undeniable leader among data recovery software, it can recover deleted files from your device even if it is failing, unreadable, or has lost a partition.

Disk Drill - best free data recovery software

With Disk Drill you can easily recover deleted photos, videos, music files, documents from internal or external drives, USB flash drives, SD cards. The Mac version supports iOS and Android recovery as well.

Features:

  • You can recover up to 500MB of data for free with Disk Drill for Windows.
  • Unlike any other, the app has two important additional data loss prevention functionalities. The first, Recovery Vault, adds a layer to the Recycle Bin and keeps a backup reference to all deleted files. The second, Guaranteed Recovery, keeps a copy of each file moved to a previously selected folder, as for example the Recycle Bin.
  • In addition, Disk Drill allows users to create image files in the form of ISO, IMG or DMG files. Therefore in practice, enables the user to conduct the data search in a clone, without taking any additional risk with the original source. This functionality is of particular importance in forensic science.

“Disk Drill is an awesome free file recovery program, both because of its long list of features and its exceptionally simple-to-use interface.” – Tim Fisher, lifewire.com

Summarizing, Disk Drill is not only free and comprehensive but also the best buy data recovery software. It has been confirmed by plentiful independent reviewers on the Internet and printed publications. CleverFiles, the developer of Disk Drill, has been around for many years and is a respected technology provider, based in the USA.


2. EaseUS Data Recovery Wizard (Windows & Mac)

EaseUS Data Recovery Wizard is not just another data recovery software, but also a user-friendly app, with a Windows Explorer type interface, and a three-step easy file recovery process.

Easeus free data recovery wizard for windows

This app is free for recovering data up to 500MB (for the time being). It works on internal and external hard drives, USB flash drives, memory cards and various types of partitions. Read our Easeus Data Recovery Wizard review.

Features:

  • Group deleted files with Tags for simpler recovery;
  • Greatly enhanced FAT recovery quality;
  • Recover up to 2 GB of data for free for clicking the share button.

“Fast, reliable performance. Recovers many files other products couldn’t recover in testing. Easy sorting of deleted files and specific file types” – Edward Mendelson, pcmag.com

In brief, EaseUS Data Recovery Wizard presents a practical option for casual data losses. If the user needs extra recovery capacity, the developer offers a paid upgrade that gains extra functionality.


3. Recuva (Windows)

Developed by Piriform, Recuva can recover permanently deleted files, which have been marked as free space by the operating system.

best freeware data recovery software for windows - Recuva

This free data recovery software can work on hard drives, USB flash drives, memory cards, MP3 players, and other storage devices supported by FAT and NTFS file systems. The app comes in 32-bit and 64-bit versions. After the developer joined a bigger enterprise, the app has not been updated in several years.

In addition, Recuva is available in installable and portable form. The portable version has the advantage of not having to risk the possibility of overwriting the data still on a hard drive, and therefore losing extra megabytes due to its own deployment.

Recuva is a freemium app, meaning that its functionality can be enhanced by acquiring a commercial license.

Features:

  • Unlimited free data recovery with the standard version;
  • Deep scan mode for hard to find files;
  • It’s available in a portable version.

“Recuva is attractively priced and easy to use, though it can’t dig in quite as deeply as higher-priced data recovery software.” – Edward Mendelson, pcmag.com

In summary, Recuva presents a good choice for both users, casual and frequent, that require a solid app for data loss recovery. You can see the full results of our tests in our in-depth Recuva review.


4. TestDisk Data Recovery (Windows & Mac)

TestDisk freeware solution is only applicable to partition recovery. It is a command-line tool that supports many operating systems and filesystems. The app is still supported by its developer and is available in a bootable version.

Testdisk free partition recovery for windows

Features:

  • Wide operating system and filesystem support;
  • Recovers partitions, boot sectors, and file tables;
  • Has a bootable version.

Overall, TestDisk is a very specialized tool that will not serve the needs of average users suffering from inadvertent data loss. The functionality of this software can cause additional damage to potentially recoverable data when used by individuals with insufficient training. Check out the full TestDisk review.


5. Minitool Power Data Recovery (Windows)

Minitool Power Data Recovery offers users a comprehensive data recovery tool that supports over 100 different file types. The application can restore lost and deleted data from many types of storage devices with a three-step recovery process.

Minitool Power Data Recovery Software

A free version of the tool can be upgraded with monthly, yearly, or lifetime subscriptions. Preview selected file types before recovery and select designated folders to be scanned for faster performance.

Features:

  • Recover up to 1 GB of data for free;
  • Intuitive user interface for simplified recovery;
  • 24×7 technical support is available.

“For ease of use and effective data recovery, Power Data Recovery will handle most jobs just fine.” – Jon L. Jacobi, pcworld.com

Overall, Minitool Power Data Recovery tool is the next recommended option among the best data recovery software free apps available, thanks to its inherent efficiency and simplicity.

Want to know more? Explore our Minitool Power Data Recovery review to see the full results of our research and testing.

Comparison of the 5 Best File Recovery Software

Best Data Recovery SoftwarePlatformUnique FeaturesBuilt-in Data ProtectionFree versionPro version
1. Disk DrillWindows, MaciPhone & iPad data recovery; Android data recovery; RAW file types supportedYes500 MB for freeMultiplatform lifetime license
2. Easeus Data RecoveryWindows, MacImage files and documents repair supportedNo500 MB for freeSubscription-based
3. RecuvaWindowsPortable version availableNoFree plan without customer supportSubscription-based
4. TestDiskWindows, Mac, LinuxPartition recoveryNoFreewareFreeware
5. Minitool Data RecoveryWindowsSupport for CD/DVD recoveryNo1 GB for freeSubscription-based

How to Pick the Best Data Recovery Software

You should never use a data recovery software application without first carefully evaluating whether it’s really the best tool for the job. At best, you might lose valuable time. At worse, you might ruin your chances of recovering your deleted data.

When selecting file recovery software, look beyond screenshots and extravagant marketing claims and consider the following criteria:

⚙️ Performance

Since your ultimate goal is to get back all deleted files, data recovery performance is, by far, the most important selection criteria you need to pay attention to when selecting the best software. Some applications can recover data only from the Recycle Bin that hasn’t been emptied, and such applications are significantly less useful than those capable of retrieving permanently deleted files that are no longer present in the Recycle Bin.

🏞 File Type Support

The software should be able to undelete all commonly used file types, including audio files, video, images, documents, executable files, archives, and backups.

📸 Files System Support

Data loss isn’t limited to traditional spinning hard drives—it affects all storage devices, including modern solid-state drives, USB flash drives, and memory cards. Since you can never know which storage device you’ll need to recover next, you should pick a data recovery application that’s able to recover lost data from file systems intended for both internal and external storage devices, including NTFS, FAT, FAT32, exFAT, HFS+, APFS, ext2/3/4, and others.

💻 Operating System Supported

Unless you don’t mind using a different operating system just to recover your deleted data, you should select tool that supports your main operating system. Fortunately, there are many great options available to Windows and Mac users alike, and even Linux users have several solutions to choose from.

Set of Features

There are several features all good data recovery software solutions should have, such as the ability to preview deleted files before recovery, the ability to recover only specific files, and the ability to recover data from devices that are failing, partially unreadable, or have lost a partition.

🛒 Price

Just because you can download and install an application for free doesn’t necessarily mean that you can also use it to recover deleted data without paying. When selecting the best data recovery software, it’s a good idea to start with a certain budget in mind and prioritize apps that fit into it. When comparing prices, remember that some applications are subscription-based (which means that you get charged every month/year), and some offer a lifetime license and sometimes even lifetime updates.

🔒 Security

The last thing you want is to install a tool infected with malware or created by someone who doesn’t know how to recover deleted files securely. That’s why you should stick to popular solutions with plenty of positive online reviews and many satisfied users. 

Conclusion

As a result of extensive testing of the reviewed apps, we are confident in naming Disk Drill the best free data recovery software. The impressive feature set and technical support for the first-time users score high for CleverFiles. Remember, it can not only recover your lost data but also protect your existing files from being deleted accidentally.

FAQ

What is the best free data recovery software in 2021?

Top 7 best free data recovery software in 2021:

  1. Disk Drill Data Recovery (Windows & Mac) – Best overall
  2. EaseUS Data Recovery Wizard (Windows & Mac) – Best free recovery limit
  3. Recuva (Windows) – Best freeware
  4. TestDisk (Windows & Mac) – Best open-source
  5. MiniTool Power Data Recovery (Windows) – Best customer support availability
  6. R-Studio (Windows, Mac & Linux) – Best for professionals
  7. Stellar Data Recovery (Windows & Mac) – Best image repair capabilities

According to our comparison of free data recovery software in 2021, Disk Drill is the best solution available to Windows and Mac users.

Is it safe to use data recovery software?

Yes, but you must choose a trustworthy recovery software application. Outdated applications and solutions from unknown developers should be avoided because they could make the data loss worse or infect your computer with malware.

What’s the difference between Free and Pro data recovery tools?

Since professional tools cost money, they typically offer more features and better recovery performance than free tools. Some Pro tools are visually indistinguishable from their Free counterparts, which makes it easier to transition from the free version to the paid ones.

What data recovery software do professionals use?

Believe it or not, but professionals use the same data recovery tools that are available to regular users, including those featured in this article. Of course, data recovery professionals don’t hesitate to purchase the Enterprise version of their favorite tool to unlock additional features and enjoy better restore performance.

In what data loss situations can recovery software help?

Recovery software can help with all cases of logical data loss, including:

  • Accidental file deletion: By far the most common cause of data loss, accidental file deletion can be reverted with the help of a capable recovery software application.
  • Corrupted file systems: From operating system incompatibilities to software errors, there are many reasons why file systems become corrupted.
  • Lost, deleted, RAW, inaccessible, formatted partition: One small error when partitioning a storage device can make an entire partition inaccessible or wipe it out entirely.
  • Disk failure: A temporary disk failure is another common cause of logical data loss that can be fixed with recovery software.
  • Virus attack: Viruses, ransomware, and other kinds of malware often target sensitive data to cause as much damage as possible.
  • Formatted storage devices: When you accidentally format an entire storage device, you can still recover your files from it, provided you act quickly and don’t overwrite them.

Unfortunately, recovery software can’t help with hardware-related data loss, including:

  • Mechanical failure: A head crash is one example of a mechanical failure plaguing spinning hard drives, but all storage devices are vulnerable to hardware-related data loss.
  • Electronic failure: All storage devices are controlled by tiny electronic components with limited lifespans and varying reliability.
  • Theft: When it comes to theft, backups are your only option since you can’t recover data from a storage device you physically don’t have.

How much data can I recover for free?

That depends on which data recovery software you choose. Obviously, completely free applications don’t limit their users in any way whatsoever, allowing them to recover an unlimited amount of data free of charge. Paid data recovery applications, on the other hand, typically let you recover only a certain amount of data (such as 500 MB or 1 GB) before requiring you to purchase a license that unlocks unlimited recovery capabilities.

How does data recovery software work?

Data recovery software uses sophisticated algorithms to find files that are still physically present on the hard drive but whose logical links have been severed. Image that you have a large book, such as an encyclopedia, and you want to find a specific section. That’s easy to do if the book has an convenient index at the end, but what if it doesn’t? In that case, you must go through the book page by page and manually look for the section, and that’s basically what data recovery software does when you want to recover a file your operating system is no longer aware of.

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5: Data Recovery:

Easily Recover Files Larger than 4GB in Size

Jump to Top 5 Data Recovery Solutions:

  1. Top 1, 5: Data Recovery:. EaseUS Data Recovery Wizard
  2. Top 2, 5: Data Recovery:. Stellar Data Recovery
  3. Top 3. Disk Drill
  4. Top 4. Recover My Files
  5. Top 5. R-Studio

Microsoft Cases - How Can I Undelete Files Larger Than 4GB

"I accidentally delete a folder with several files larger than 4GB. I've tried the following application so far:

  • Recuva
  • GetDataBack for NTSF v4.0
  • File Scavenger 3.2

None of them can see files larger than 4GB. Am I pretty much out of luck trying to recover these files?
Is there some custom settings I must apply? Or is this a limitation of Windows Vista?

  • OS:  Windows Vista
  • Core 2 Duo 2.0 GHz
  • 4 GB RAM

Greatly appreciate any help. If there is 5: Data Recovery: Windows undelete tool that will recover files larger than 4GB, please let me know and I will buy it."

microsoft case- how to undelete files larger than 4 gb

Just as the scenario says, many people find it difficult to restore large files about 4GB to 8GB or even larger size directly from Recycle Bin, or from other devices. Why is that? First, many files are too large for Recycle Bin when they got deleted. Files over the maximum size will bypass the Recycle Bin and be permanently removed from the computer drive, 5: Data Recovery:. You'll find nowhere to get them back unless employing 5: Data Recovery: third-party data recovery software.

However, not all of the recovery tools would really help you recover 4GB or larger files successfully because files bigger than 4GB are stored on an NTFS partition drive. Only a powerful NTFS partition recovery software can perform this task. Among Adobe Lightroom 5 crack serial keygen the renowned online data recovery services, we happily recommend the top 5 data recovery solutions to recover extremely large files or data.

Top 1, 5: Data Recovery:. EaseUS Data Recovery Wizard

Among all the renowned online data recovery services, we happily recommend EaseUS Data Recovery Wizard when you get trouble in more than 4GB files recovery in Windows 10/8/7/XP/Vista computer, 5: Data Recovery:. With this data recovery software, you will be able to retrieve precious data whether it was lost by deletion, formatting, hard drive crash or virus infection PaperScan Professional 3.0.128 With Full Crack capacity limitation. EaseUS Data Recovery Wizard will undelete files from the hard drive, memory card, USB, digital camera, mobile devices, and other storage media.

Highlights

  • Supports the recovery of all file types from various devices
  • Virus-free and plugin-free; Has fast scanning speed and high data recovery quality
  • A simple interface and advanced features that contribute to a smooth recovery process, like filters, 5: Data Recovery:, tags, search bar, and preview pane
  • Supports file system including FAT(FAT12,FAT16,FAT32), exFAT, NTFS, NTFS5, ext2/ext3, HFS+, ReFS

Tutorial: Detailed Steps to Recover Files Over 4GB 

You can easily undelete large files of varied files such as Word documents, Photoshop PSB/PSD files, videos, music files and more, 5: Data Recovery:, download the hard drive recovery software as soon as possible. Learn with the guide below to perform large file recovery no matter the file is 4 GB or more.

Download for Win Recovery Rate 99.7%

Download for Mac Trustpilot Rating 4.4

Step 1. Choose the file location to 5: Data Recovery: EaseUS Data Recovery Wizard on your computer. Choose the drive where you lost files and click "Scan". If your lost files were on an external storage device, connect it to your computer firstly.

select the file location and click scan

Step 2. Scan the lost files

The software 5: Data Recovery: start immediately a quick scan for deleted 5: Data Recovery:, and later a deep scan will launch automatically to scan more lost files all over the selected drive. After the scan, you can use the Filter to quickly filter a specific file type.

scan the lost files

Step 3. Preview and restore files

Double-click on a file allows for a full preview. Finally, select the desired files, click "Recover" and browse another safe location to save all the files at once.

recover lost files

EaseUS Data Recovery Wizard supports full NTFS partition recovery along with 4GB larger file recovery. Moreover, it's also known as FAT recovery software that enables any file recovery on FAT 12/16/32 partition drives.

Top 2. Stellar Data Recovery

Stellar Data Recovery Professional, previously known as Stellar Phoenix Windows Data Recovery Professional, 5: Data Recovery:, recovers lost or deleted data from any Windows device or storage media. It deals with all types of data loss situations including drive formatting, disk corruption, file deletion and more. 

Highlights

  • Recovers data from completely crashed & unbootable systems
  • Recovers data from HDDs, SSDs, external USB drives & optical media
  • Recovers data from lost or deleted Windows partitions

stellar data recovery software

Top 3. Disk Drill

Disk Drill, developed by CleverFiles, is uniquely tailored to scan both external and internal storage devices, from your local disk drive to portable USB drives and SD cards. It is a formidable hard drive data recovery software that ranks high in the information technology industry.

Highlights

  • Has auxiliary features like data protection and backup drive
  • Organizes files found by category
  • Filters the results by size and data
  • Supports multiple file systems

disk drill data recovery

Top 4. Recover My Files

Recover My Files data recovery software recovers deleted files emptied from the Windows Recycle Bin, files lost due to the format or re-install of a hard drive, or files 5: Data Recovery: by a virus, Trojan infection, unexpected system shutdown or software failure.

Highlights

  • Scans the backup (image file) of a partition
  • Sorts out files by date
  • Adjusts the layout of the viewed items

recover my files

Top 5. R-Studio

Empowered by the new unique data recovery technologies, R-Studio is the most comprehensive data recovery solution for recovery files from NTFS, NTFS5, ReFS, FAT12/16/32, 5: Data Recovery:, exFAT, HFS/HFS+ and APFS (Macintosh), Little and Big Endian variants of UFS1/UFS2 (FreeBSD/OpenBSD/NetBSD/Solaris) and Ext2/Ext3/Ext4 FS (Linux) partitions. It claims to use unique and advanced data recovery technologies that 5: Data Recovery: well in all kinds of data loss scenarios.

Highlights

  • Enables the data recovery from various data loss situations
  • Supports multiple file systems
  • Exclusively supports the data recovery from network drives

r-studio data recovery

Conclusion

How to figure out which one is the best one? If you are looking for a guaranteed data recovery program, 5: Data Recovery:, I recommend - EaseUS Data Recovery Wizard. They have both Windows and macOS versions and support recovering data from mobile devices like iPhones and Android phones as well, 5: Data Recovery:. Free versions are available but only allow you to recover up to 2GB 5: Data Recovery: What is the best free data recovery software?

A: Best free file recovery software:

Q: How can I recover deleted files from my hard drive for free?

A: You can recover hard drive data with EaseUS Data Recovery Wizard Free if your data is no more than 2GB. Also read - Best Hard Drive Recovery Software.

Step 1. Launch EaseUS hard drive recovery software.

Download for Win Recovery Rate 99.7%

Download for Mac Trustpilot Rating 4.4

Step 2. Check and preview all lost hard drive data.

Step 3. Restore lost hard drive data to a safe location.

Q: How do I recover permanently deleted files?

A: Permanently deleted files by using shift+delete keys or third party software are also recoverable with the help of EaseUS Data Recovery Wizard. See how to recover permanently deleted files in Windows 10.

Q: Is there a free iPhone data recovery?

A: Yes, there is. EaseUS MobiSaver Free helps recover contacts, messages, photos, videos, notes, and other content on your iPhone, iPad or iPod Touch. Support the latest iOS 13 and iPhone 11, 11 Pro, XS, 5: Data Recovery:, XS Max, 5: Data Recovery:, and XR.

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Top 5 Free Data Recovery Software

Data can be lost from your computer hard disk drive, flash drive, USB drive, 5: Data Recovery:, memory card, or other storage devices for different scenarios, such as deletion, formatting, virus attack, or system error. Once files are lost, 5: Data Recovery:, you can try to get your back from backup folders, recycle 5: Data Recovery:, or Trash. If all these simple solutions cannot help you retrieve data back, you will need a free data recovery software.

  • Recover lost files from preview backup if you have;
  • Recover deleted data from Recycle Bin (Windows PC) or Trash (Mac) if they haven't been emptied;
  • Get a free data recovery software.

Sometimes, the first two solutions are not as useful as we expect on most occasions. We would like to recommend a free data recovery software for help. In this article, we will list the top five free data recovery software for you. Each data recovery can help you to retrieve your deleted or lost data back for free.

  1. Recoverit Free Data Recovery
  2. Recuva
  3. Undelete 360
  4. Wise Data Recovery
  5. Pandora Recovery

Top 5 Free Data Recovery Software

1. Recoverit Free Data Recovery

free data recovery

Your Safe & Reliable Free Data Recovery Software

  • Recover lost or deleted files, photos, audio, music, emails from any storage device effectively, safely and completely.
  • Supports data recovery from recycle bin, hard drive, memory card, flash drive, digital camera, and camcorders.
  • Supports to recover data for sudden deletion, formatting, hard drive corruption, virus attack, system crash under different situations.
  • Recoverit Data Recovery Free only supports to recover 100MB data.

How to Recover Deleted or Lost Data with Recoverit Free Data Recovery

Download Recoverit Free Data Recovery on your computer, launch it, and follow the next simple steps to recover your data back.

Step 1: Select a location where your data been lost, click the "Start" button to start scanning data.

select a location

Step 2: Recoverit free data recovery will start a quick scan to search deleted files.

scaning lost data

Step 3: After the scan completed, you can check all recovered files. Preview some recoverable files like images (JPEG, JPG, GIF, 5: Data Recovery:, PNG,etc.). Select your data and click the "Recover" button to get your data back.

preview data and get data back

Note: Please don't save your recovered data to the damaged hard drive, select safe storage to avoid data loss again.

2, 5: Data Recovery:. Recuva

free data recovery program

Recuva is a famous free data recovery software specially designed for Windows. You can use its Wizard mode or manual mode to restore lost data from your device. The Wizard mode let you customize search type to "All Files", "Picture", "Music", "Documents", "Video", "Compressed" or "Emails", 5: Data Recovery:. Then you can set the search location to everywhere on your computer. See Recuva alternatives here.

Pros:

  • 1 Powerful wizard mode with a detailed guide;
  • 2 Detailed states of found files will be shown in the window: recoverable or unrecoverable;
  • 3 There is a handy version for you to install it on a USB drive or an external hard drive;
  • 4 It's free, and there's no functional difference between the free version and paid pro version;
  • 4 All Windows OS supported: Windows 8, Windows, Windows 2008 Server, Windows Vista, Windows XP, Windows 2003 Server.

Cons:

  • 1 Not all original file names are available. You can only view some of the originally found file Express VPN 9.1.0 Crack Archives Files are not sorted in file types in manual mode;
  • 3 You can only preview 5: Data Recovery: of the pictures.

3. Undelete 360

free data recovery software

Undelete 360 is a user-friendly and useful utility that suits for all versions of Windows and Windows file systems. It effectively recovers 5: Data Recovery: lost due to many reasons like intentional or unintentional deletion, software or hardware failure, Trojan infection, or even unexpected system shutdown, 5: Data Recovery:. You can sort found file by "Type" 5: Data Recovery: "Folder". You can tell how damaged the file is according to the "Status" column in the window.

There is a paid professional version of the program. You can't use the "Filter" option as well as sort file in the "Folder" category, the free version is still a reliable and powerful data recovery tool for you to restore your lost data.

Pros:

  • Amazingly fast scanning speed
  • Clear states of found files are displayed. All found files will be noticed in red "Overwritten" and green 'Very Good" status.

Cons:

  • Many functions in the window are not available, such as "Wipe Files", "Group By Folder" and "File Preview". You need to upgrade to the professional version to activate them.
  • Not all files are listed with original names. Sometimes it would be hard for you to get what you want to retrieve.

4. Wise Data Recovery

recover data with free software

Wise Data Recovery is a tiny and fast free data recovery program that runs on Windows PC. The really clean interface of the 5: Data Recovery: helps you to recover deleted pictures, videos, or audio files within several simple clicks, 5: Data Recovery:. The program's clean menu makes it rather simple to find and select the exact file you want to recover.

Pros:

  • This is a tiny utility with an easy-to-use interface and fast scanning speed;
  • The recoverability of found file will be displayed in "Good", "Poor", "Very Poor", or "Lost" status;
  • The last-modified time of lost data will be displayed in the program window.

Cons:

  • You'll not be able to preview found files;
  • Found data is listed in a physical directory other than in "Folder" or "File Type" categories.

5. Pandora Recovery

data recovery for free

Pandora Recovery is a free data recovery software that recovers lost files from NTFS and FAT-formatted volumes. With it, you can recover pictures, videos, audio files, or documents.

What makes it so special is that you can browse the 5: Data Recovery: of existing and deleted files, or you can use the search functionality to find a deleted file if you remember file name, file size, file creation date, or file last accessed date after scanning. You can preview both image file types and text file types before recovering them.

Pros:

  • Offers different scanning options: "Browse scan" and "Surface scan";
  • Wizard Mode with detailed instructions is available;
  • Recovers Archived, Hidden, 5: Data Recovery:, Encrypted, Compressed files
  • Quick Viewer allows you to preview image file types and text file types;
  • Nicely-designed searching features

Cons:

  • Files are not sorted in file types. You need to use the "Search" function frequently to get what you want;
  • The utility doesn't support all file types;
  • The interface is not very clear that it might be a little bit difficult for a newbie to use it.

Conclusion:

All free data recovery programs in this list are reliable, and they're good enough for normal data recovery requirements. Now that you have so many free data recovery software in option, it's time for you to select the most suitable to restore your deleted files now!

DownloadWindows 5: Data Recovery: Version

Other popular Articles From Wondershare

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Free File Recovery Software: EaseUS Data Recovery for PC & Mobile Phone

EaseUS Data Recovery Wizard Free

EaseUS Data Recovery Wizard

Free and powerful file recovery software to recover 2GB of files free of charge. It solves all file loss problems: recovering files emptied from the Recycle Bin, lost due to a software crash, formatted or damaged hard drive, virus attack, lost partition or other unknown reasons under Windows 10/8.1/8/7/Vista/XP and Windows Server 2019/2016/2012/2008/2003.

Download 5: Data Recovery: Windows VersionBuy Pro Version with 50% off

Key Features:

  • Recovers up to 2GB of data for free.
  • Recovers deleted, formatted or inaccessible data.
  • Recovers files from deleted, formatted, hidden or lost partitions.
  • Recovers files from PC, laptops, servers, 5: Data Recovery:, digital devices or storage media.

EaseUS Data Recovery Free for Mac

EaseUS Data Recovery Free for Mac

Free Mac file recovery software can help users to recover lost/deleted files from Mac-based hard drives, external hard drives, 5: Data Recovery:, digital cameras, MP3/MP4 players, and other devices. With the intuitive interface and the 3-step process “Scan – Preview – Recovery”, it easily retrieves photos, videos, 5: Data Recovery:, music and other files lost by accidental deleting, formatting, virus infection, InPixio Photo Studio Ultimate Crack 10.04.0 improper operation. EaseUS Data Recovery Free for Mac allows users to freely recover 2GB of 5: Data Recovery: Free Mac VersionBuy Pro Version with 50% off

Key Features:

  • Recovers many types of files, including images, videos, documents, email, archive, etc.
  • Supports the recovery of data from multiple storage devices like external drives, USB drives, SD cards, memory cards, 5: Data Recovery:, and others.
  • Supports macOS Big Sur - OSX 10.9

Restore deleted files on NTFS and FAT drives

SoftPerfect File Recovery iconSoftPerfect 5: Data Recovery: Recovery is 5: Data Recovery: free and simple tool for restoring files and rescuing data that was accidentally deleted from hard disks, USB flash drives, CF and SD cards and other storage media. It supports the popular file systems such as FAT12, FAT16, FAT32, NTFS and NTFS5 with compression and encryption.

If some important files disappeared and you can't find them in the bin, don't panic yet. Try SoftPerfect File Recovery utility. It is very easy to use. Simply download the File Recovery to a USB flash drive or another disk, avoiding copying or downloading anything to the disk where the files are missing. Then run the File Recovery .exe file, search for the missing files reFX Nexus 3.0.20 torrent Archives the location they were before, and see if it can help to restore the deleted files.

Key features

  • Lightweight and free.
  • Works with FAT and NTFS.
  • Supports compressed and encrypted volumes.
  • Recognises most storage media.
  • Portable software, no installation required.

Download SoftPerfect File Recovery

Size: 579K

Screenshot

SoftPerfect File Recovery screenshot

The simple and easy-to-use interface of SoftPerfect File Recovery

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Data recovery

Process of salvaging inaccessible data from corrupted or damaged secondary storage

In computing, data recovery is a process of salvaging inaccessible, lost, corrupted, damaged or formatted data from secondary storage, removable media or files, when the data stored in them cannot be accessed in a usual way. The data is most often salvaged from storage media such as internal or external hard disk drives (HDDs), 5: Data Recovery: drives (SSDs), USB flash drives, magnetic tapes, CDs, DVDs, RAID subsystems, and other electronic devices. Recovery may be required due to physical damage to the storage devices or logical damage to the file system that prevents it from being mounted by the host operating system (OS).

About[edit]

The most common data recovery scenarios involve an operating system failure, malfunction of a storage device, logical failure of storage devices, accidental damage or deletion, etc. (typically, on a single-drive, single-partition, single-OS system), in which case the ultimate goal is simply to copy all important files from the damaged media to another new drive. This can be accomplished using a Live CD or DVD by booting directly from a ROM instead About | Pirate PC the corrupted drive in question. Many Live CDs or DVDs provide a means to mount the system drive and backup drives or removable media, and to move the files from the system drive to the backup media with a file manager or optical disc authoring software. Such cases can often be mitigated by disk partitioning and consistently storing valuable data files (or copies of them) on a different partition from the replaceable OS system files.

Another scenario involves a drive-level failure, such as a compromised file system or drive partition, or a hard disk drive failure. In any of these cases, the data is not easily read from the media devices. Depending on the situation, solutions involve repairing the logical file system, partition table or master boot record, or updating the firmware or drive recovery techniques ranging from software-based recovery of corrupted data, 5: Data Recovery:, hardware- and software-based recovery of damaged service areas (also known as the hard disk drive's "firmware"), to hardware replacement on DVDFab Crack 11.0.6.5 (x86x64) Full Version[New] physically damaged drive which allows for extraction of data to a new drive. If a drive recovery is necessary, the drive itself has typically failed permanently, and the focus is rather on a one-time recovery, salvaging whatever data can be read, 5: Data Recovery:.

In a third scenario, files have been accidentally "deleted" from a storage medium by the users. Typically, the contents of deleted files are not removed immediately from the physical drive; instead, references to them in the directory structure are removed, and thereafter space the deleted data occupy is made available for later data overwriting. In the mind of end users, deleted files cannot be discoverable through a standard file manager, but the deleted data still technically exists on the physical drive. In the meantime, 5: Data Recovery:, the original file contents remain, often in a number of disconnected fragments, and may be recoverable if not overwritten by other data files.

The term "data recovery" is also used in the context of forensic applications or espionage, where data which have been encrypted or hidden, rather than damaged, are recovered. Sometimes data present in the computer gets encrypted or hidden due to reasons like virus attack which can 5: Data Recovery: be recovered by some computer forensic experts.

Physical damage[edit]

See also: Data recovery hardware

A wide variety of failures can cause physical damage to storage media, which may result from human errors and natural disasters. CD-ROMs can have their metallic substrate or dye layer scratched off; hard disks can suffer from a multitude of mechanical failures, such as head crashes, PCB failure and failed motors; 5: Data Recovery: can simply break.

Physical damage to a hard drive, even in cases where a head crash has occurred, does not necessarily mean there will be permanent loss of data. The techniques employed by many professional data recovery companies can typically salvage most, if not all, of the data that had been lost when the failure occurred.

Of course there are exceptions to this, such as cases where severe damage to the hard drive platters may have occurred. However, if the hard drive can be repaired 5: Data Recovery: a full image or clone created, then the logical file structure can be rebuilt in most instances.

Most physical damage cannot be repaired by end users. For example, opening a hard disk drive in a normal environment can allow airborne dust to settle on the platter and become caught between the platter and the read/write head. During normal operation, read/write heads float 3 to 6 nanometers above the platter surface, and the average dust particles found in a normal environment are typically around 30,000 nanometers in diameter.[1] When these dust particles get caught between the read/write heads and the platter, they can cause new head crashes that further damage the platter and thus compromise the recovery process. Furthermore, end users generally do not have the hardware or technical expertise required to make these repairs. Consequently, data recovery companies are often employed to salvage important data with the more reputable ones using class 100 dust- and static-free cleanrooms.[2]

Recovery techniques[edit]

Recovering data from physically damaged hardware can involve multiple techniques. Some damage can be repaired by replacing parts in the hard disk. This alone may make the disk usable, but there may still be logical damage. A specialized disk-imaging procedure is used to recover every readable bit from the surface. 5: Data Recovery: this image is acquired and saved on a reliable medium, the image can be safely analyzed for logical damage and will possibly allow much of the original file system to be reconstructed.

Hardware repair[edit]

Media that has suffered a catastrophic electronic failure requires data recovery in order to salvage its 5: Data Recovery: common misconception is that a damaged printed circuit board (PCB) may be simply replaced during recovery procedures by an identical PCB from a healthy drive. While this may work in rare circumstances on hard disk drives manufactured before 2003, it will not work on newer drives. Electronics boards of modern drives usually contain drive-specific adaptation data (generally a map of bad sectors and tuning parameters) and other information required to properly access data on the drive. Replacement boards often need this information to effectively recover all of the data. The replacement board may need to be reprogrammed. Some manufacturers (Seagate, for example) store this information on a serial EEPROM chip, which can be removed and transferred to the replacement board.[3][4]

Each hard disk drive has what is called a system area or service area; this portion of the drive, which is not directly accessible to the end user, usually contains drive's firmware and adaptive data that helps the drive operate within normal parameters.[5] One function of the system area is to log defective sectors within the drive; essentially telling the drive where it can and cannot write data.

The sector lists are also stored on various chips attached to the PCB, and they are unique to each hard disk drive. If the data on the PCB do not match what is stored on the platter, then the drive will not calibrate properly.[6] In most cases the drive heads will click because they are unable to find the data matching what is stored on the PCB.

Logical damage[edit]

See also: List of data recovery software

Result of a failed data recovery from a hard disk drive.

The term "logical damage" refers to situations in which the error is not a problem in the hardware and requires software-level solutions.

Corrupt partitions and file systems, media errors[edit]

In some cases, data on a hard disk drive can be unreadable due to damage to the partition table or file system, or to (intermittent) media errors. In the majority of these cases, 5: Data Recovery:, at least a portion of the original data can be recovered by repairing the damaged partition table or file system using specialized data recovery software such as Testdisk; software like dd rescue can image media despite intermittent errors, and image raw data when there is partition table or file system damage, 5: Data Recovery:. This type of data recovery can be performed by people without expertise in drive hardware as 5: Data Recovery: requires no special physical equipment or access to platters.

Sometimes data can be recovered using relatively simple methods and tools;[7] more serious cases can require expert intervention, particularly if parts of files are irrecoverable. Data carving is the recovery of parts of damaged files using knowledge of their structure.

Overwritten data[edit]

See also: Data erasure

After data has been physically overwritten on a hard disk drive, 5: Data Recovery:, it is generally assumed that the previous data are no longer possible to recover. In 1996, Peter 5: Data Recovery:, a computer scientist, presented a paper that suggested overwritten data could be 5: Data Recovery: through the use of magnetic force microscopy.[8] In 2001, he presented another paper on a similar topic.[9] To guard against this type of data recovery, Gutmann and Colin Plumb designed a method of irreversibly scrubbing data, known as the Gutmann method and used by several disk-scrubbing software packages.

Substantial criticism has followed, primarily dealing with the lack of any concrete examples of significant amounts of overwritten data being recovered.[10] Although Gutmann's theory may be correct, there is no practical evidence that overwritten data can be recovered, while research has shown to support that overwritten data cannot be recovered.[specify][11][12][13]

Solid-state drives (SSD) overwrite data differently from hard disk drives (HDD) which makes at least some of their data easier to recover. Most SSDs use flash memory to store data in pages and blocks, referenced by logical block addresses (LBA) which are managed by the flash translation layer (FTL). When the FTL modifies a sector it writes the new data to another location and updates the map so the new data appear at the target LBA. This leaves the pre-modification data in place, with possibly many generations, and recoverable by data recovery software.

Lost, deleted, and formatted data[edit]

Sometimes, data present in the physical drives (Internal/External Hard disk, Pen Drive, etc.) gets lost, deleted and formatted due to circumstances like virus attack, accidental deletion or accidental use of 5: Data Recovery:. In 5: Data Recovery: cases, data recovery software are used to recover/restore the data files.

Logical bad sector[edit]

In the list of logical failures of hard disks, a logical bad sector is the most common fault leading data not to be readable. Sometimes it is possible to sidestep error detection even in software, and perhaps with repeated reading and statistical analysis recover at least some of the underlying stored data. Sometimes prior knowledge of the data stored and the error detection and correction codes can be used to recover even erroneous data. However, if the underlying physical drive is degraded badly enough, at least the hardware surrounding the data must be replaced, or it might even be necessary to apply laboratory techniques to the physical recording medium. Each of the approaches is progressively more expensive, and as such progressively more rarely sought.

Eventually, if the final, physical storage medium has indeed been disturbed badly enough, recovery will not be possible using any means; the information has irreversibly been lost.

Remote data recovery[edit]

Recovery experts do not always need to have physical access to the damaged hardware. When the lost data can be recovered by software techniques, they can often perform the recovery using remote access software over the Internet, LAN or other connection to the physical location of the damaged media. The process is essentially no different from what the end user could perform by themselves.[14]

Remote recovery requires a stable connection with an adequate bandwidth. However, it is not applicable where access to the hardware is required, as in cases of physical damage.

Four phases of data recovery[edit]

Usually, there are four phases when it comes to successful data recovery, 5: Data Recovery:, though that can vary depending on the type of data corruption and recovery required.[15]

Phase 1
Repair the hard disk drive
The hard drive is repaired in order to get it running in some form, or at least in a state suitable for reading the data from it. For example, 5: Data Recovery:, if heads are bad they 5: Data Recovery: to be changed; if the 5: Data Recovery: is faulty then it needs to be fixed or replaced; if the spindle motor is bad the platters and heads should be moved to a new drive.
Phase 2
Image the drive to a new drive or a disk image file
When a hard disk drive fails, the importance of getting the data off the drive is the top priority. The longer a faulty drive is used, the more likely further data loss is to occur. Creating an image of the drive will ensure that there is a secondary copy of the data on another device, on which it is safe to perform testing and recovery procedures without harming the source.
Phase 3
Logical recovery of files, partition, MBR and filesystem structures
After the drive has been cloned to a new drive, it is suitable to attempt the retrieval of lost data, 5: Data Recovery:. If the drive has failed logically, there are a number of reasons 5: Data Recovery: that, 5: Data Recovery:. Using the clone it may be possible to repair the partition table or master boot record (MBR) in order to read the file system's data structure and retrieve stored data.
Phase 4
Repair damaged files that were retrieved
Data damage can be caused when, for example, a file is written to a sector on the drive that has been damaged. This is the most common cause in a failing drive, meaning that data needs to be reconstructed to become readable. Corrupted documents can be recovered by several software methods or by manually reconstructing the document using a hex editor.

Restore disk[edit]

The Windows operating system can be reinstalled on a computer that is already licensed for it. The reinstallation can be done by downloading the operating system or by using a "restore disk" provided by the computer manufacturer. Eric Lundgren was fined and sentenced to U.S. federal prison in April 2018 for producing 28,000 restore disks and intending to distribute them for about 25 cents each as a convenience to computer repair shops.[16]

List of data recovery software[edit]

Bootable[edit]

See also: List of live Jvider 1.7 crack serial keygen § Rescue and repair live CDs

Data recovery cannot always be done on a running system. As a result, a boot disk, live CD, 5: Data Recovery:, live USB, or any other type of live distro contains a minimal operating system.

  • BartPE: a lightweight variant of Microsoft Windows XP or Windows Server 2003 32-bit operating systems, 5: Data Recovery:, similar to a Windows Preinstallation Environment, which can be run from a live CD or live USB drive. Discontinued.
  • Finnix: a Debian-based Live CD with a focus on being small and fast, useful for computer and data rescue
  • Disk Drill Basic: capable of creating bootable Mac OS X USB drives for data recovery
  • Knoppix: contains utilities for data recovery under Linux
  • SpinRite: a FreeDOS-based data recovery tool for hard disks and magnetic storage devices
  • SystemRescueCD: an Arch Linux based live CD, useful for repairing unbootable computer systems 5: Data Recovery: retrieving data after a system crash
  • Windows Preinstallation Environment (WinPE): A customizable Windows Boot DVD (made by Microsoft and distributed for free). Can be modified to boot to any of the programs listed.

Consistency checkers[edit]

  • CHKDSK: a consistency checker for DOS and Windows systems
  • Disk First Aid: 5: Data Recovery: consistency checker for Mac OS 9
  • Disk Utility: a consistency checker for Mac OS X
  • fsck: a consistency checker for UNIX
  • gparted: a GUI for GNU parted, the GNU partition editor, capable of calling fsck

File recovery[edit]

Forensics[edit]

See also: Computer forensics

Imaging tools[edit]

Main article: List of disk cloning software

See also: Disk image

  • Clonezilla: a free disk cloning, disk imaging, data recovery, and deployment boot disk
  • ddrescue: an open-source tool similar to dd but with the ability to skip over and subsequently retry bad 5: Data Recovery: on failing storage devices
  • dd: common byte-to-byte cloning tool found on Unix-like systems
  • Team Win Recovery Project: a free and open-source recovery system for Android devices

See also[edit]

References[edit]

  1. ^https://acsdata.com/data-recovery-3tb-seagate-hard-drive/#Hard_Drive_Flying_HeightArchived 13 February 2017 at the Wayback Machine
  2. ^Vasconcelos, Pedro. "DIY data recovery could mean "bye-bye"". The Ontrack Data Recovery Blog. Ontrack Data Recovery. Retrieved 26 July 2019.
  3. ^"Hard Drive Circuit Board Replacement Guide or How To Swap HDD PCB". donordrives.com. Archived from the 3DMark03 Pro v3.2.0 by SnD crack serial keygen on 27 May 2015. Retrieved 27 May 2015.
  4. ^"Firmware Adaptation Service - ROM Swap", 5: Data Recovery:. pcb4you.com. Archived from the original on 29 March 2013. Retrieved 27 May 2015.
  5. ^Ariel Berkman (14 February 2013). "Hiding Data in Hard Drive's Service Areas"(PDF). recover.co.il. Archived from the original(PDF) on 26 February 2015. Retrieved 23 January 2015.
  6. ^"Data Recovery Report - Read Before Choosing A Data Recovery Company". 16 April 2013. Archived from the original on 16 April 2013.
  7. ^Data Recovery SoftwareArchived 17 October 2016 at the Wayback Machine
  8. ^Secure Deletion of Data from Magnetic and Solid-State MemoryArchived 9 December 2007 at the Wayback Machine, Peter Gutmann, Department of Computer Science, University of Auckland
  9. ^Data Remanence in Semiconductor DevicesArchived 21 February 2007 at the Wayback Machine, Peter Gutmann, IBM T.J. Watson Research Center
  10. ^Feenberg, Daniel (14 May 2004). "Can Intelligence Agencies Read Overwritten Data? A response to Gutmann". National Bureau of Economic Research. Archived from the original on 9 May 2008. Retrieved 21 May 2008.
  11. ^"Disk Wiping – One Pass is Enough". anti-forensics.com. 17 March 2009. Archived from the original on 2 September 2012.
  12. ^"Disk Wiping – One Pass is Enough 5: Data Recovery: Part 2 (this time with screenshots)". anti-forensics.com. 18 March 2009, 5: Data Recovery:. Archived from the original on 27 November 2012.
  13. ^Wright, Dr. Craig (15 January 2009), 5: Data Recovery:. "Overwriting Hard Drive Data". Archived from the original on 23 May 2010.
  14. ^Barton, 5: Data Recovery:, Andre (17 December 2012). "Data Recovery Over the Internet", 5: Data Recovery:. Data Recovery Digest. Archived from the original on 27 May 2015. Retrieved 29 April 2015.
  15. ^Stanley Morgan (28 December 2012). "[Infographic] Four Phases Of Data Recovery". dolphindatalab.com. Archived from the original on 2 April 2015. Retrieved 23 March 2015.
  16. ^Washington Post (26 April 2018). "Electronics-recycling innovator is going to prison for trying to extend computers' lives". Washington Post. Retrieved 2 May 2018.

Further reading[edit]

  • Tanenbaum, A. & Woodhull, A. S. (1997). Operating Systems: Design And Implementation, 2nd ed. New York: Prentice Hall.
  • Data recovery at Curlie
Источник: [https://torrent-igruha.org/3551-portal.html]

RAID 5 Data Recovery: A Step-by-step Tutorial For You [MiniTool Tips]

Languages: 日本語

Summary :

RAID 5 data recovery

RAID 5 is a common RAID setup used frequently in small businesses and other organizations. Like other storage devices, RAID 5 could be corrupted due to different reasons. Once a RAID 5 crashes, data saved there will be put in danger. Now, I will show you how to perform RAID 5 data recovery easily and quickly. Then, tips on how to rebuild a RAID 5 will be given to you.

What Is RAID 5 Data Recovery

RAID (Redundant Array of Independent Disks) actually refers to a data storage virtualization technology which puts multiple physical disk drive components into one or more logical units. Three main purposes of creating a RAID are data redundancy, fault tolerance, and performance improvement (or the combination of them).

Tip: How to recover data from a virtual disk?

Common RAID schemes or data distribution layouts are RAID 0, RAID 1, RAID 5, RAID 0+1, etc. The balance between performance, capacity, reliability, and availability, is different in different RAID levels.

Once you find your RAID is corrupted, you should start to recover data from RAID without any delay. The following content focuses on RAID 5 data recovery only; data recovery from other types of RAID is essentially the same.

RAID 5 data recovery

The following things need to be identified when you need to recover data from RAID:

  • The number of disks that have been used
  • The type of parity used in the RAID array
  • Disk sequence and block size
  • The offset pattern

The RAID 5 partition recovery can be completed as long as the data is found completely and the RAID parameters are set correctly.

RAID 5 Failure

The biggest advantage of having a RAID 5 is: the array will continue to work even when there is one disk in RAID 5 that fails since the parity information is allocated on different drives; this will not cause any data loss.

Situation 1:

If more than 2 5: Data Recovery: are failed in the same RAID 5, the array will be broke and data will be put in danger. The array rebuilding requires much time and it is likely to bring drive failure, so you may witness serious disasters during 5: Data Recovery: process. What’s more, it needs to read data from all the disk drives involved when the RAID 5 array is rebuilding; this may result in a second drive failure and the entire array loss.

Situation 2:

If you try to force the array back online when there is one drive failed in RAID 5, the array tends to fail, 5: Data Recovery:. Despite the fact that RAID 5 can continue to work when one disk is failed and there are most RAID 5 controllers, the force online feature may ruin everything. If the failed disk has been pushed back online by this function, the whole array will be corrupted immediately.

In both situations, you need to follow the steps given below to recover data from degraded UltraISO Premium Edition 9.5.2.2836 crack serial keygen without hesitation.

Recover Data from RAID 5 with 2 Failed Drives

Can RAID 5 Lose 2 Drives

All data saved on the disks contained in a RAID 5 will be available (due to parity) unless the disks get failed suddenly.

Can I recover a RAID 5 array if two drives have failed?

I have a Dell 2600 with 6 drives 5: Data Recovery: in a RAID 5 on a PERC 4 controller. 2 drives failed at the same time and according to what I know a RAID 5 is recoverable if 1 drive fails. I'm not sure if the fact I had six drives in the array might save my skin. I bought 2 new drives and plugged them in but no rebuild happened as I expected. Can anyone 5: Data Recovery: some light?- asked by bonga86 on serverfault.com

How many disks can you lose in RAID 5?

  • If only one of the disks fails, 5: Data Recovery:, it is easy to recover data from single RAID 5 disk since the reconstruction of RAID 5 will start immediately whenever the hard disk failure is detected.
  • In contrast, 5: Data Recovery:, if two or more disks are corrupted at the same time, 5: Data Recovery:, all data will be lost.

That is to say, the RAID 5 can survive if there is only one disk damaged. Once you find two or more disks are getting into trouble, you should carry out data recovery from RAID 5 at once.

How to Recover Data from RAID 2 Disk Failure

If you have a single or multiple disks failed in your RAID 5 and the disks contain important data, you need the help of RAID data recovery software.

A program from MiniTool® Software Ltd. called MiniTool Power Data Recovery is regarded as the best RAID recovery software by most users (it can be the good recovery software for RAID 1, RAID 5, 5: Data Recovery:, and other types of RAID). It can help you recover data from both crashed disk and disks with problematic partitions.

Phototune 2020 Color MD for Adobe Photoshop v1.1 crack serial keygen Power Data Recovery">
  • You should make sure that the configuration tables of the RAID are functional. If you run into the breakdown issue, please fix it properly before you start RAID data recovery.
  • If you want to recover data from a drive in RAID 1, you only need to make sure the disk works well.

How to get files off a RAID hard drive:

Step one: get the setup program of MiniTool Power Data 5: Data Recovery: from the reliable link and save it on your computer.

Free Download

Step two: run the setup program to finish the installation process and make sure your failed RAID disk is connected to this PC.

Step three: launch the RAID recovery software and select the proper function from the left pane.

  • Please keep This PC selected if you want to recover files from existing hard drive partitions.
  • You should select Hard Disk Drive to recover data contained in a deleted/lost partition.
select the proper function

Step four: 5: Data Recovery: click on the partition/disk that includes the data you want to get back to start drive scan.

Step five: more and more files will be found by the software and you should choose the ones you really need.

more and more files will be found

Step six: click Save to choose a storage path in the pop-up window. Then, click OK to confirm and wait for the recovery process to complete.

Please note:

You will see the following prompt window when clicking on Save, 5: Data Recovery:. It indicates that you are using the trial edition of software which only allows you to scan the disk and preview the found files for free. If you need to recover data with it, you’ll need to upgrade to the full version by clicking on the Upgrade Now button.

upgrade to the full version

This method also works when you want to recover data from RAID 0, RAID 1, RAID 0+1…

You should take the following things into consideration when you need to carry out RAID data recovery:

  • Can you really afford to lose the data contained in RAID forever?
  • How many drives do you have in the RAID array?
  • Do you know clearly the order of disks in RAID?
  • What are the possible causes of the RAID failure?
  • Is the recovery software you choose capable of recovering data from RAID safely?

When the recovery work is done, 5: Data Recovery:, you should continue to rebuild the failed RAID 5.

Click to 5: Data Recovery: how to recover a RAID 5 single-disk failure.

Rebuild Failed RAID 5 Yourself

One of the most important reasons why RAID 5 is so popular is that it is tolerant of a single drive failure.

  • Once a certain disk failed, RAID 5 will start to rescue data from the entire RAID array by taking advantage of its parity function, 5: Data Recovery:. In this way, it can calculate the missing data.
  • Once there are two or more disks failed, you should hurry to recover data from RAID 5 by using the above method.

When the data recovery is finished, you should try to rebuild the RAID 5. The following actions could help you increase the success rate:

  1. Turn off your system the moment when you hear weird noises coming from it, so as to prevent further damage.
  2. Analyze the possible factors causing such failure and evaluating the condition of the disk drives carefully.
  3. Remember to put the disk drives in order when you remove them from your array.
  4. You can’t be too gentle when moving around drives getting from RAID.

How to Rebuild RAID 5 without Losing Data

How long does it take to rebuild RAID 5?

Before the rebuilding process, you may ask how much time is needed to complete the process. Actually, there is no definitive answer. The more drives you have and the more capacity you add, Connectify Hotspot Crack + License Key Latest Pro Version more time you need to rebuild the RAID.

The RAID rebuild time is closely related to two factors: the quantity of data saved on the RAID disks and the 5: Data Recovery: of the entire RAID. It is very important 5: Data Recovery: storage administrators, especially enterprise administrators.

How to rebuild with a single disk failed:

  1. Shut down your device until you know what is going on exactly.
  2. Take out the failed drive and replace it with a new drive of the same capacity.
  3. Just wait since the RAID will rebuild itself.

There’s a great chance that you experience a second drive failure during the rebuild process, so you should be alert while RAID is rebuilding. The failure of both another drive and the controller is going to result in a failed rebuild process.

How to rebuild with 2 or more disks failed:

  1. Recover data from RAID by using the method introduced in the previous part.
  2. Make sure all the original drives are here and label them in order.
  3. Send your RAID to a professional recovery company and it will help you get back on track.

Cautions

You should pay attention to the following things to prevent data loss when RAID has been rebuilt successfully.

  • Do not create any new files or folders on the disk included in the failed RAID.
  • Make an image of the RAID structure in case of any unexpected accidents.
  • Create a backup of the disks (or at least essential files) on a separate volume to ensure security.
  • Run CHKDSK or use FSCK tool to check for errors when necessary.
  • Do not modify (add, move, or delete) data casually.

Here’s how to recover data lost after CHKDSK:

recover data after chkdsk thumbnail

CHKDSK Deletes Your Data? Now Recover Them In Two Ways

Does CHKDSK utility delete your important data? Here are ways to help your recover CHKDSK deleted files in few steps.

Read More

What Is RAID 5 Used for

RAID 5 is one of the most common RAID configurations; it adopts disk striping with parity and consists of at least 3 hard disk drives (at most 16 disks). In a RAID 5 array, you’ll find the data and parity are allocated evenly across the disks contained in the array GOM Player 2.3.63.5327 Crack + License Key 2021 [LATEST] won’t be written to a fixed drive). The Microsoft Toolkit 2.6.7 Activator for Windows 10 & Office of one of the other data blocks in RAID 5: Data Recovery: can be recalculated by the computer using the parity data. That explains why RAID 5 can continue to work after a single drive failure.

disk range

Thus, 5: Data Recovery:, RAID 5 is regarded as one 5: Data Recovery: the most reliable RAID schemes. It greatly improves the bottleneck problem caused by parity data storage.

  • The advantage of RAID 5 when compared to RAID 1 and RAID 10: it has more usable storage.
  • The performance of RAID 5 is almost equal to that of RAID 0.

Though RAID 5 can be achieved by virtue of software, it is not advisable. A hardware controller is better since extra cache memory can be used on the controller for the sake of improving write performance.

How Does RAID 5 Work

What is striping? It actually refers to storing consecutive segments of data to different disks. This is a good way to get better throughput and performance. Disk striping, together with parity, offers RAID 5 with redundancy and reliability. The benefits of RAID 5 are mainly come from disk striping and parity.

In RAID 5, it is parity, not the popular mirroring, that provides data redundancy. The parity will be calculated by the system and written into the corresponding drive every time new data is written into RAID 5.

What’s the difference between RAID 5 and mirroring?

  • In RAID 5, the system will start to rebuild by using the parity data when a drive is failed.
  • During mirroring, multiple copies of data will be kept in different volumes at the same time in case of sudden failure.

Data stored on any two drives can be put together to equal to the data stored in a third hard drive after data has been kept on each drive. In this way, even a single drive is failed, RAID data are not in danger. Therefore, disks in RAID 5 are hot-swappable; the failed hard disk can be removed and replaced by a new drive without downtime.

Conclusion

Combining efficient storage, high security, and wonderful performance together, RAID 5 becomes an all-around system. RAID 5 is a good choice for file Cyberlink PowerDVD 21.1 Crack with Activation Code (2021) application servers which contain limited data drives. It is also important to individual users, enterprises and many organizations. As a result, RAID 5 recovery is important since the loss of data on RAID 5 could bring terrible influences.

Whenever you find your RAID 5 is failed (going to fail), you should carry out RAID 5 data recovery firstly; then, rebuild RAID 5 yourself or by hiring professionals when necessary.

ABOUT THE AUTHOR

5: Data Recovery: height="200" alt="Sarah">

SarahFollow us

Position: Columnist

Sarah is working as editor at MiniTool since she was graduated from university, having rich writing experiences. Love to help other people out from computer problems, disk issues, and data loss dilemma and specialize in these things. She said it’s a wonderful thing to see people solving their problems on PC, mobile photos, and other devices; it’s a sense of accomplishment. Sarah likes to make friends in life and she’s a huge music fan.

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2 comments

  1. Lmao was thinking the same. Definitely was doing that on purpose in case these women see his video.

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