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The best free disk imaging program a comparative analysis updatedWhat is the best way to safeguard your computer and undo a system disaster Most would agree that is done best by making a  so called disk image, where your entire system partition is backed up and cloned, and the image saved on a different physical hard drive. Disk images are also an excellent way to keep data entire hard drives or partitions backed up and optionally compressed andor encrypted. But not all freeware disk imaging tools are created equal. This article aims to find out which free disk imaging software is the best. To answer this question we conducted head to head tests on four of the best free disk imaging programs that are available on the internet Paragon Backup Recovery 2. Drive. Image XML, Easeus Todo Backup, Macrium Reflect, the Windows 7 built in imaging, and Redo Backup. See the results below. Last updated Nov 3. In our last update of this article we added 2 programs to the mix Redo Backup and Windows 7 own internal imaging function, we fixed some data in the comparison table, and editing the article according to the new info. The list of programs that were considered Paragon Backup Recovery 2. Advanced Free v 1. Easeus Todo Backup v 5. Macrium Reflect v 5. Drive. Image XML v 2. Redo Backup v 1. Windows 7 built in imaging. We excluded a number of programs such as Clone. Zilla and Seagate Diskwizard for various reasons see why. Note if you would like you can skip the analysis below and jump straight to our results section download links are under the results section. The criteria Imaging and compression performance which program is the best in both speed and compression. This was the most important factor we looked at. Restoration speed we measured this, which may be important for users who need to restore images frequently. Feature comparison we considered a handful of functions that we think to be important. The Test We installed all four programs on a Windows 7 6. OS. Next, we imaged that partition with each program across all compression settings i. Next, we restored these images back one after the other, to gauge restoration speed. Here are the results. The Data expand titleClick here to see the dataOriginal partition size 1. GBProgram. Compression Mode. Backup Seconds. Backup Size. Compression Restoration Seconds. Ease. Us. Normal. GB4. 14. 95. Ease. Us. Medium. 51. 96. GB3. 46. 48. Ease. Us. High. 68. 06. GB3. 36. 38. Paragon. Fast. 64. 29. 6. 7 GB5. Paragon. Normal. 55. GB3. 65. 13. Paragon. Best. 65. 05. 5. 5 GB34. Macrium Reflect. None. GB6. 15. 77. Macrium Reflect. Medium. 47. 86. 7. GB3. 65. 77. Macrium Reflect. High. 61. 66. 5. 2 GB3. Driveimage Xml. None. GB9. 31. 58. 5Driveimage Xml. Fast. 81. 91. 1. 4 GB6. Driveimage Xml. Good. GB3. 21. 64. 4Redo Backup. NA6. 64. 6. 9 GB3. Windows. 7 Backup. NA1. 73. 01. 1. 7 GB6. Imaging and compression performance The pink box above shows the best performance the fastest image creation and the smallest file size. Easeus normal profile is the best bet small file size and very fast imaging speed. Generally speaking, Easeus comes out on top IMHO, but if you are looking for the smallest image size then Paragon is your best bet i. Paragons best compression mode. Macrium Reflect also does well generally speaking, but if you are using Macrium Reflect because you think it is the fastest, as I was, our test shows Easeus is fastest, and Paragon does more or less just as well on speed. Redo does pretty well as well with a fast, small size backup. Drive. Image XML did not fare so well all of the datapoints outside the pink box, and Windows 7 took by far the longest and created a large backup file the second biggest in our tests. Restoration speed. Four things to say about this chart Restoration time the red bars, the smaller they are the better. The grey bars are imaging times, just for reference. Redo Backup is the fastest to restore. Considering that its backup time and size was very good as well, it is definitely a good option. Restoration time is roughly similar for Paragon, Easeus, and Macrium Reflect. Drive. Image. XML stands out for taking way longer. Easeus normal compression profile my favorite profile from the imaging performance section above is one of the fastest to restore, which pretty much confirms Easeus as my favorite free disk imaging program. Features Note we are discussing the FREE versions here. The paid versions typically have more features. This is not an exhaustive list of features but rather a list of what we thought most noteworthy. Ease. Us free. Paragon free. Macrium Reflect free. Drive. Image XMLRedo Backup. Win 7 imaging. Support for hot processing i. Yes. Yes. Yes. No. Live. CD only. No. Live. CD only. Yes. Selective restore i. Yes also allows mounting images. Yes also allows mounting images. No. Yes also allows mounting imagesNo. Yes. Allows browsing backups and restoring files and folder. Option to backup and restore system files only. Yes. Yes. Yes. No. No. No. Ease of bootable Media Creation whether on CD or USBEasy from within the applicationEasy from within the applicationEasy from within the application Linux based. Win. PE bootable media also available but is a large download. Difficult. You have to download Win. True Detective S01e05 Vostfr more. PE add a plugin to it and make a live CD. Or DL and burn Ultimate Boot CD. Large download. 2. ISO to media. Easy . It will burn a recovery DVD on demand but strangely will not burn to a USB stick. Or use your Windows disc. Incremental selective backup i. Yes. No. Not in the free version. No. Not in the free version. No. Not in the free version. No. No. The ability to restore an image to adifferent size hard drive. Yes. Uncheck sector by sector to do so. Yes. Will let you specify the new size of the partition before restoring. Yes. Yes. Yes. Yes. Support for GPT formatted disks. Yes. Yes. Yes. No. No. Unsure. Excluded programs We excluded Clone. Zilla because we found it too complicated and not user friendly. Seagate Discwizard was excluded because it only supported hard drives made by Seagate and Maxtor. Results is a pro, is a con. Our FIRST choice Ease. Us To. Do Backup Free Easy to use and friendly Excellent performance for both imaging speed and recovery speed, as well as compression Easy creation of bootable media A good set of features overall. The only free program to perform incremental backups. Our close SECOND choice Paragon Backup Recovery 2. Advanced Free Easy to use and friendly Excellent performance for both imaging speed and recovery speed, as well as compression although Ease. Us above might have a slight edge Easy creation of bootable media A good set of features overall You need to register the program with a valid email for free. Tied for second place Redo Backup Excellent performance for imaging speed, but also the best recovery speed recorded in our tests. If you need to frequently restore images this may be the one for you. Without a doubt one of the best free disk imaging options out there. Redo Backup performs truly byte for byte, bare metal disk imaging thanks Gregg Des. Elms for pointing that out The Live CD contains many tools that could be helpful in recovery situations, including file recovery. A 2. Somewhat un user friendly, and requires getting used to. Also Live. CD only, operating from outside the OS. For some, a disadvantage, for others not so much.