EaseUS Data Recovery Wizard 5.6.1 Unlimited License Keygen
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In general, however, data recovery software is safe and can be a helpful tool if you've lost important files with intuitive graphic user interface. However, it's essential to be careful when using these programs, as they can sometimes cause more damage to your device. If you're unsure whether it's safe to use data recovery software, it's always best to consult with a professional.
Data recovery software is a program that can be used to recover lost or deleted files from your computer. When a file is deleted, the data is not actually erased from your hard drive. Instead, the file space occupied is simply marked as empty and available for new data. As long as the old data is not overwritten, it can be recovered using special software. Data recovery tools work by scanning your hard drive for any traces of the lost data. Once they have located the data, they can then rebuild the files and save them to a new location. In most cases, data recovery software can successfully recover lost files with little to no damage. However, if the data has been overwritten, it will be much more difficult to recover.
The system constantly reboot and freeze with an error message displayed on the screen or even stop working entirely without any notifications? Don't worry. Try EaseUS data recovery software to copy out all the critical files.
Hard disk does not respond and hear a few "biz biz" when you're trying to boot from it, and then it stops and becomes inaccessible? Try EaseUS data recovery software to recover data from the dead hard drive and do hard disk repair.
I used Recuva and EASEUS Data Recovery Wizard to see if there's any difference in the files they recover. Both software were able to recover files that I want however most of the files where no longer usable. For example, for images, when you view them it's just black, for .doc files, MS Word can no longer open open them. They appear to be corrupted. This happens on both Recuva and EASEUS.
What happened was that those files were fragmented, and once they were deleted, the cluster chain was removed, so when the programs "recovered" them, what they did was to look at the starting location (which is still present) and the size of the file (which is also still present) and simply copied that many clusters in a row from the start.
This works fine if the files are stored in a single, contiguous block (i.e., defragmented), but if they were fragmented, then their blocks are spread out around the disk and the program has absolutely no way to know where/which ones to use; that's why most of the corrupted recovered files will have at least one cluster's worth of correct data, but then contain whatever happened to be in the subsequent clusters that used to belong to other files.
If the files are plain-text, then you could search the drive for unused clusters (which is a nightmare with a giant, nearly empty disk) and manually stitch the file back together (I did this a few times many years ago). But with binary files, this is effectively impossible. In fact, even with plain-text files, it is difficult at best if the file had been getting edited and saved after changes numerous times because it then becomes difficult to identify the clusters that contain blocks of the last version of the file.
The above explanation is how some data-recovery programs work. It is generally more reliable because it looks at real files that existed more recently. However (not surprisingly perhaps), it can miss out on some files. That is why other programs like PhotoRec use a different approach. Instead of looking at a deleted file's information (filename, size, timestamp, starting cluster) in directory entry and then copying the clusters from the disk, they search the whole disk for lost files.
Most file types have a signature (usually at the start of the file, in the header) which contains a sequence of bytes that identify the file as a certain type. Because of this, programs that open a file can determine if the file is teh correct type and other programs can verify the type of a file.
What some data-recovery programs do is to search the disk and check each cluster to see if they contain the signature of various different file types. If a cluster contains a signature, then it copies that cluster (and more depending on various factors) to a file.
It doesn't help after losing files, but for future reference, the best way to increase the chances of a successful recovery is to keep the disk defragmented (have the system automatically defragment when it idles).
So, yes, fragmentation can be an issue when recovering data but is not by definition. For example, it depends highly on the file system you are recovering data from. It also depends on how the data was lost.
For example, assume a formatted volume and we'll compare FAT based FS vs. NTFS: Yes, in the FAT based FS (FAT32, exFAT) fragmented files are an issue because the file allocation tables were wiped during the format. On NTFS most MFT entries will survive and as long we have those fragmented file recovery is no issue at all as we have the complete runlists for the files.
Example 2: a RAW volume. This can be caused by major file system corruption but also by something as simple as a corrupted boot sector BIOS parameter block. If the latter on both FAT32, exFAT and NTFS volume you should be able to achieve a close to 100% perfect recovery, fragmented files or not. However the reason that popular tools like Recuva and Easeus often fail in these situations are that they're not that good in working out a valid virtual file system.
Then one remark about software that scans for file signatures, or 'carvers'. It is true that for many files it is not possible to detect a file end so you potentially end up with huge files. However there's plenty of files that you can detect file ends for + there a number of rules of thumb you could apply here too.
There are tools specifically designed to puzzle together fragmented files even with absence of any valid file system structures. However, they often work only for very specific file types, such as JPEG, or MP4 or XLS. The reason for this being they need specialized 'knowledge' about the actual file structure to reconstruct valid files.
Also, by doing scans using different tools to determine which is 'best' wastes time. Depending on the cause of the data loss an unstable drive may further deteriorate and if you're for example aiming to recover deleted files, every second you waste risks part of such files being overwritten.
Canceling a scan for lost files during data recovery should not damage or remove your existing files. However, incomplete or inaccurate recovery results may occur. It's advisable to have backups of important data to prevent data loss.
An overall competent file recovery tool, EaseUS Data Recovery Wizard Pro is easy to use but slow. It's also expensive for single users to consider and is more suited to small business users rather than large corporations or organizations and public bodies.
Its set of features certainly suggests that it'll get the job done. It can hunt through conventional hard disks and even damaged operating systems for photos, and it supports more file and device types than virtually every rival. It's even got a generous free version alongside powerful paid options.
A free version of Data Recovery Wizard is available, but this is not suitable unless you only need basic functionality. While the free product does restore files from hard drives, SSDs and external HDDs, you don't get NAS support, remote assistance or any of its photo and video repair functionality.
Previously EaseUS' free trial was just for 30-days and offered scanning but no actual recovery capabilities, which seemed pretty cruel. It appears the developers have listened to user feedback since then, as the free version now allows you to recover up to 2GB of data.
We had a hard time squaring this free allowance on our tests, as after attempting to recover a 100MB folder on a 512MB drive just three times, our allowance was reduced to around 200MB. It's possible the 2GB limit may apply to the size of the drive being scanned instead of the amount of data recovered.
Various file recovery features are available with this software, from straightforward undelete (whether accidental or from emptying the recycle bin) to recovering data lost by formatting a disk drive. Hard disk drives, SSDs, SD cards, flash drives, USB drives and others can be recovered with EaseUS Data Recovery Wizard Pro.
EaseUS Data Recovery wizard supports of a number of file system types, including FAT(FAT12,FAT16,FAT32), ExFA, NTFS, NTFS5, EXT2/EXT3, HFS+ and ReFS. Linux users may be disappointed to see a lack of support for ext2/ext3/ext4 drives but since Easus Data Recovery Wizard is only available for Windows and macOS, it's not unusual that it would support only file systems for those operating systems.
RAW file systems (where the MBR is corrupt or partition table damaged) that cannot be recognised by your computer's operating system can also be recovered. The EaseUS user guide gives fair warning that some files don't share the same structure and identifiers, so certain more unusual file formats can't be recovered. This shouldn't be an issue if you simply want to use EaseUS Data Recovery Wizard to retrieve lost images however, unless they're in a very old or exotic format like TIFF or PPM.
With flexible scanning to find deleted files quickly or scan storage sector-by-sector, one of the most useful features of this software is the pre-recovery preview. This reassurance lets you observe lost files before they're fully recovered.
EaseUS Data Recovery Wizard Pro will also, its website boasts, recover data loss caused by power failure, system crash, hard drive failure, viruses, and accidental or poorly planned operating system reinstallation. Sadly as there's no free trial of the Pro features, we weren't able to test this.
Although EaseUS Data Recovery Wizard is a popular option for recovering lost images, the utility actually supports recovering a wide number of file formats. We also felt that drives would be unlikely to contain only images so wanted to do a realistic test.
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