Best Free Data Recovery and File Un-delete Utility

 
Introduction

Does anyone recall the olden days when there were no PCs around and you did all your saving in actual touchable folders and files? And remember how you had to archive them for years and years to come?

only marked for deletionSo, 10 years later you'd send your secretary to the archive and tell them to discard years from 1961 to 1970. And what did they do - throw 'em away? Sure they didn't - you could use the folders again, if emptied. Now, did they empty them right away? No, they didn't. They just ran along the shelf and tore off the labels so that everybody knew those were the folders to be used again next.

When you opened one of those folders all its content was still in perfect shape, readable and all, and if you'd made a mistake and you'd need one of those folders i.e. its content, you just had to be quick enough...

That's the way MS Windows handles your data. They're written to your hard disk, kept there according to your wishes and once you decide to get rid of them, all the space your data occupy on the hard disk is marked for reuse, just like tearing off the labels of those nostalgic folders.

File recovery relies on the fact that when a user deletes a file (or empties the wastebasket or recycle bin) the contents of the file aren't physically obliterated on the disk, but rather the file is simply flagged as deleted. More precisely, the space it occupies is marked as available for writing. This means that the older the file, the less chance there is of successful recovery because it’s more likely to have been overwritten by another newer file.

File recovery software works best when the deleted files are recovered to another drive. That's because the very act of recovery involves writing to your drive, and you don't want to write over other files that still need to be recovered. The "other" drive can be another hard disk, another hard disk partition, a networked machine, or an external USB device.

Recovery programs operate more successfully if they are installed before any file recovery is attempted. If the file you want to recover is on your “C” drive, the simple act of installing one of these programs onto that drive may obliterate the target file you want to recover. Remember that recovery software cannot undelete files that have been written over.

Recovering data from physically damaged drives is also beyond the capabilities of most free recovery tools.  There are tools that will attempt partial recovery, but generally these are expensive commercial products or services.

However, if you have just accidentally emptied your wastebasket (recycle bin), or explicitly deleted a file, and realized you've made a mistake, file recovery is a very real possibility. The golden rule is “don’t write ANYTHING to the disk, or reboot”. Just immediately run your recovery software.

 
In a Hurry?

Go to details...  Go straight to the Quick Selection Guide

 
Discussion

Until recently, file recovery was one of the few categories where the main commercial products really outshone the freeware alternatives. But the picture has changed dramatically. You now have some excellent freeware choices.

Testing procedure:

I have tested the software on lots of different media including  USB Flash, SD, MMC, SM,CF, MS, Micro SD, SSD, Hard disk in SATA, IDE as well as SCSI which contained office documents, photos, quickbooks backup and large Outlook psts. I have deleted those and filled the drive with different files. I have deleted those and emptied the recycle bin and quick formatted the drives. All tested software, except PC Inspector, managed to recover all files without fail.

Time taken on the other hand was quite different. After that I have filled half of the disk with another directory of mp3s. All software failed to recover any deleted files on normal recovery modes. At this point I have formatted the drive and tried deeper recovery options that tested software comes with. That's where the true colours came out as the results were very different.

 

KenRenameMiniTool Power Data Recovery (Free Edition) is my top pick as it proved to be way ahead of the competition. It comes with a very intuitive interface which is suitable for all users. It has recovered 1GB in 85 seconds and managed to recover all 106 files after the disk was formatted.

I found MiniTool very easy to use with superb results. Help files are very good explaining most of the recovery methods step by step. A must have for any computer.

UPDATE: Though this is a free tool it has a limit of 1GB recover. If you wish to recover any more than the 1GB you will need to purchase the full version

 

RecuvaRecuva is a very easy to use file undelete utility from Piriform which does exactly what it says on the can. Interface is very user friendly and it only took couple of clicks to get my data back. It has recovered 1GB in 87 seconds.

However, it only works great on straight forward recovery. I found that after formatting the disk deep scan could only locate and recover 19 files out of 106.

 

TestDiskTest Disk is an open source software loaded with features. It has recovered 1GB in 83 seconds, a time which was beaten only by commercial software. Test Disk is a cross-platform application which is pre-installed on a few Linux distro live CDs. It has many useful options like restoring DE type partitions which is very useful for Dell computers. It does not need to be installed and overall is very powerful.

On the down side it does not have a GUI and is targeted for more advanced users. It does have a good step-by-step guide for all recovery options. There are good detailed guides online, simply search Google for TestDisk Step by Step. 

 

PC InspectorPC Inspector File Recovery is another free file undelete utility. It does have a decent GUI but did not live up to other contenders. It has recovered 1GB in 15 minutes which felt like ages. Logical drive selection felt somewhat confusing.

Sector scan looked a promising option but it has failed to recover any of the deleted files after the format.

 
Related Products and Links

You might want to check out these articles too:

 
Quick Selection Guide

MiniTool Power Data Recovery
5
 
Gizmo's Freeware award as the best product in its class!

Runs as a stand-alone program on a user's computer
Very intuitive interface, great recovery times, best recovery ratio.
Free to recover 1 GB data
http://www.powerdatarecovery.com/
6.8
9.35 MB
32 bit but 64 bit compatible
Feature limited freeware
A portable version of this product is available but not from the developer.
486 or Pentium-class processor IDE/SATA/SCSI hard drive 64MB RAM (128 MB recommended) Windows 2000/XP/2003/Vista/2008/7/8 100 MB of free space A second hard disk is recommended for recovery. Supports all the 64bit Windows.
Recuva
4
 
Runs as a stand-alone program on a user's computer
Easy to use interface, good recovery times.
Lacking some features available to Mini Tool.
http://www.piriform.com/recuva
1.51.1063
4.02 MB
32 bit but 64 bit compatible
Unrestricted freeware
A portable version of this product is available from the developer.
Microsoft Windows 8, 7, Vista, XP and 2000. Including both 32-bit and 64-bit versions.

Recuva - Portable Zip File. Scroll to the bottom of download page.

TestDisk
4
 
Runs as a stand-alone program on a user's computer
Powerful utility, multi-platform, fastest recovery times. No installation requirements
No GUI, aimed for more experienced users.
6.14
3.56 MB -->Win32.exe
32 bit but 64 bit compatible
Unrestricted freeware
There is no portable version of this product available.
DOS (either real or in a Windows 9x DOS-box),Windows (NT4, 2000, XP, 2003, Vista, 2008, Windows 7 (x86 & x64 Use only on systems lacking WoW64 as some features are missing), Linux kernel 2.4x and 2.6x i386/x86_64, FreeBSD, NetBSD, OpenBSD, SunOS and MacOS X
PC Inspector File Recovery
2
 
Runs as a stand-alone program on a user's computer
Decent GUI.
Very slow, failed to recover any files after formatting.
4.0
3.3 MB
32 bit but 64 bit compatible
Unrestricted freeware
There is no portable version of this product available.
Windows 98, ME, NT, 2k, XP,7,8

Last Release 8-2-2007

 
Editor

This software review is copy-edited by Ian Richards. Please help edit and improve this article by clicking here.

data recovery, file undelete, utility, freeware

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Comments

by kastaldi on 6. July 2014 - 12:22  (117182)

If you don't mind getting your hands dirty, stick to Test Disk. I overwritten a 750GB USB external drive with a 2GB Raspberry Pi image file because I didn't pay attention to the drive letter. Test Disk was the only one to find the NTFS partition and getting (almost) all my data back.
Another powerful and user friendlier text utility is DMDE, unfortunately it is limited to files in its free version (no multiple directories) but it works very well.

by sicknero on 25. June 2014 - 11:16  (116918)

I appreciate there's no editor for this thread right now but for anyone reading I just wanted to mention Puran File Recovery (http://www.puransoftware.com/File-Recovery-Download.html) which is part of the Puran Utilities suite but can be downloaded as a separate portable program.

I used it over the weekend to recover almost 2 terabytes of accidentally deleted videos (don't ask...) and I was very impressed.

Firstly, it scanned the 2TB USB drive in about a minute (on standard as opposed to deep scan... deep scan is a lengthy process) and then it presents the results with each file being given a likelihood of how recoverable it is. What immediately made Puran stand out for me was that the scan results can be displayed in Explorer "tree view", i.e. with their original directory structure as opposed to the list of single files that other recovery programs offer. This made it very easy to sort through the results and select what data I wanted to recover.

Recovery speed seemed pretty good - one 25GB folder took about half an hour while the entire 2TB drive took around 28 hours in total. Resource usage on my low-end laptop was excellent I thought - CPU usage fluctuated between 10% and less than 1%, with RAM fairly steady at about 25meg. Good news because it meant my laptop wasn't tied up for the weekend with that one task.

Results also seem very good. Obviously I've not yet watched the entire 2TB of recovered videos, but some fairly extensive random testing indicates that Puran did a good job ... everything I've tried so far plays perfectly.

Lastly, Puran ran for the entire 28+ hours without a glitch or hang.

Granted, this was a fairly ideal scenario (i.e. accidental deletion and drive not used since) and neither have I tried the alternatives for such a large job but I just wanted to mention this program as being well worth a try-out.

by crombierob on 26. June 2014 - 3:08  (116931)

Thanks for 'heads up'
The folder structure got my attention, as getting recovered files without the folder structure is 'wrist slashing'

I have downloaded the three versions.
Can any of those be run from a bootable CD ?

Rob

by sicknero on 27. June 2014 - 13:40  (116956)

Hi Rob,

Yes ... most recovery software as far as I know has the option to recover files to their original directory structure but Puran's option to display the initial scan results in their original stucture is a definite plus and a huge time saver.

Booting from CD ... I don't think many (any?) freeware recovery programs have an option to create a bootable CD or flash drive, with the exception of MiniTool which is somewhat crippled by the data limit.

However, there is a solution which will work for a lot of portable software in general. You need to get Hiren's Boot CD which includes "MiniXP", a stripped down version of Windows XP which will run directly from a CD or USB drive. (HBCD itself has an impressive collection of freeware included - description here; http://www.hiren.info/pages/bootcd and download links here; http://www.hirensbootcd.org/download/ )

Once you've booted into MiniXP, then you can navigate to wherever your portable software is and (in my experience) quite a lot of it will run with no problems. I've not tried that yet with Puran but I will do later just out of interest.

by sicknero on 28. June 2014 - 17:44  (116994)

The portable versions of Puran and Recuva both seem to run fine in MiniXP. Recuva will run as it is while for Puran you need to find gdiplus.dll and riched20.dll on your system drive and copy them into Puran's folder.

I also discovered that Recuva does have a tree view for the scan results which I hadn't noticed before (or had forgotten about). It's in Advanced - Options and Recuva actually seems to detect more files than Puran as well.

by Anupam on 25. June 2014 - 14:28  (116920)

Thanks for sharing your experience. Always nice to know about good software.

by govil_143 on 17. December 2013 - 15:09  (113005)

hi sir its working but i have deleted after recovery what to do & also increase limit data up to 20 gb y because my data is almost 130 gb sir.wil you please modify the software.

by Peter_K on 17. December 2013 - 0:24  (112988)

I used Recuva on my accidentaly erased not overwritten files. It worked partialy good: found all removed files in few seconds, but after claiming all was recovered, many of the media files ended unusable (broken).

I dont understand why does the "restoration proces" need to copy all the data to new location even if they were not overwritten. Why the need to write them again, if they actualy could keep laying completly intact on the same place they once were (just marked "free for write")? I thought the data should just need to get back their old "label" on them, while remaining in the given place.

by briantw on 3. December 2013 - 19:23  (112746)

Love your work; just a punctuation note: "all it's content" shouldn't have an apostrophe in "its".

by MidnightCowboy on 3. December 2013 - 19:41  (112747)

Now corrected. Thanks for pointing it out. MC - Site Manager.

by Bluesmanuk on 29. August 2013 - 3:32  (110384)

Recuva has often been touted on the web as being a good product and I had a chance to really test it.

I deleted all the files from a 2Gb SD card and then immediately ran the recovery.

It failed miserably, where I would have expected 100% success rate, so not one that I will trust again for anything serious.

by baladio2745 on 30. July 2013 - 0:23  (109742)

Undelete 360 is on the top of the list at thefreecountry.com for file recovery. I wonder if it recovers as much as the good ones listed here.

by Misty27 on 12. May 2013 - 4:24  (107683)

The review for Minitool Power Data Recovery mentioned there was a portable version available - but not from the developer. Who would have an authorized portable version & what reputable, trusted site would have it for download?

Did you just search for the terms "Minitool Power Data Recovery" + portable, & see there were some hits?

There are portable versions out there. Some sites are known illegal software sites. Most I've never heard of. I wouldn't trust anything coming from sites that aren't well known & even then, you have to be careful.

by crombierob on 31. March 2013 - 13:26  (106698)

Does anyone provide a program that can be run from a bootable CD.
I have just deleted a folder that I use to collect all my downloads (few months of downloading).
I did not have one of your reviewed programs pre-installed, and I would have to have a gun held to my head to install one now (as you correctly warn against).
I don't know if there are technical limitations preventing what I am looking for (bootable CD). If there are not, then Surely (Airplane) that would be the way to go ?

Rob
PS I normally do the hold shift key down trick, to delete stuff that I am positive that I don't need. I virtually never use the Recycle bin.
I got caught out this time, when I had highlighted 4 files on the right side of my File Manager. Actually I had dragged those 4 files to another partition, intending to move them. Windows smiles at you, and copies them, so they remained in my Downloads folder, and were still highlighted. So idiot Crombie comes back to the still highlighted 4 files and does his Shift Delete trick. The File Manager notices that the Folder name on the left is also highlighted, and proceeds to delete months of data. If I were an Analyst (I was), I would design such programs to notice the possible confusion (Folder highlighted on the left, and multiple files highlighted on the right), and I would just delete the files highlighted on the right, NOT EVERY FILE in the flippin folder.
Note to myself - Pry the Shift keys from my keyboard, to prevent me ever avoiding the Recycle Bin again.

by Anupam on 31. March 2013 - 13:38  (106700)

You must be having a pen drive. Just download Recuva portable to the pen drive, and run it from there itself.

And yea, using Shift+Del to get rid of files/folders instantly can be dangerous as you have now experienced. Try not to do that :).

by crombierob on 31. March 2013 - 14:09  (106702)

Thanks for quick response.
My PCs are 2004'ish, as is the one in question.
I have never had much luck getting them to boot from USB drives, but I will give it a go.
Thanks,
Rob
PS It is not this PC. The main one is turned off, to avoid overwriting any data.

by Anupam on 31. March 2013 - 14:30  (106703)

Rob, it is not necessary to boot the PC from a USB drive. You can boot it normally, and then run Recuva from the pen drive.. it won't write anything to the system.
Good luck :)

by crombierob on 31. March 2013 - 16:09  (106705)

I am a bit (actually a lot) of 'an old woman' (aka nervous/careful).
I do not want to boot into that drive, until I have recovered the Folder (or it's contents).
I am afear'd that the act of booting Windows (and the programs that auto start) could overwrite some of my deleted files.
I am surprised that there is not more demand for what I am attempting. Mind you I am surprised in many areas relating to Windows software, that people are not as careful as this 'old woman'.

by Anupam on 31. March 2013 - 16:23  (106706)

Don't worry about that too much. Booting the system shouldn't cause much changes to the system.. very negligible. So, you can overlook that. Just try not to save/create any new files. Other than that, it should be fine. Go for it :D

by crombierob on 31. March 2013 - 18:16  (106708)

All done.
Recuva is terrific.
Running it from the UBCD4Win bootable CD was great.
I set Recuva to show it's results in Treeview, and it presented my Downloads folder, and it's sub folders perfectly. All I had to do was copy that to my external drive.
Thanks for the assistance,
Rob

by crombierob on 31. March 2013 - 16:54  (106707)

Good news, I believe.
I have been Googling for the last couple of hours, searching for a bootable CD.
UBCD4Win has Recuva on it.
I am old, so my memory is rs, and I don't remember being brave enough to build it (has to be done using your own Windows XP). But I dug through my pile of CDs and there it is. The portable version of Recuva on it is 1.37.0.488
I will create a folder on this PC, and do a similar mass deletion. Then I will boot into the CD, and do a wee practice run.

by exbioman on 19. February 2013 - 21:44  (105559)

Just tried to recover encrypted 25kb *.pdf file that I didn't remember the password for. Recuva found it but couldn't recover it.

by Som on 20. February 2013 - 17:09  (105615)

Success in recovery depends on several things; to mention few of them, the most important thing is to react as soon as possible - the chances of recovery are great if software was installed *before* deletion happens.

Restarting computer with option "Delete Pagefile" enabled will almost for sure overwrite "free space" where deleted files still existed before reset. Running programs that produce huge temporary files are next on list of "destroyers". The amount of free space on partition is important too - less free space leads to sooner overwriting of free space.

Safety rule is - have recocery programs installed *now* (or use portable versions from USB) and use it immediatelly.

by Panzer on 29. January 2013 - 9:20  (104918)

Undelete Navigator:

Features:

Finds and recovers accidentally deleted files
Supports FAT, FAT32 and NTFS file systems
Builds a folder tree to explore deleted files and folders
Detailed and Iconic views for deleted files
Shows thumbnails of deleted images
Searches for specific files among the detected deleted files

http://4r-soft.com/undelete-navigator/

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