[Easeus Data Recovery Wizard 585 Serial Number Free
Kody Coste
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.
Instruction
In order to increase the success rate of recovery, the program would list every possible detected file on your disk after a full scan. So you may see a huge number of files even larger than the disk capacity. It seems clueless to locate your desired files among them. No worry. We prepared the following tips for you to directly locate your files.
Overview of the Scan Result
After the scan completes, you will be presented with a detailed scan result, where you can take some time to filter the files you want to recover.
Files found through advanced scan. Those files are listed by device model and user info. For example. The camera folder will show you a list of photos that are shoot by different camera brands. The Artist folder will show you a list of the songs by different singers. And the PDF, PTT, Excel, Word folders will show you a list of different users created those documents.
2. Although the file lose its original name, but the file size would still be the same. Thus, we can try to locate the files in another way: Input the file extension in the search box and it will give you a result that associated with that file type. List the those found files by size and be focus on the missing file with the same size as the one you were not able to be opened from the previous folder.
Note:
1. Please NEVER try to recover data to the original location where contains lost data until you have all your data recovered.
2. Only Recover button in the lower right corner can help you save files to a specified location. Save Session exports scan result only for later use.
We also offer remote assistance service to help user filter a large amount of scan result more efficiently. If you need that, please contact us via Livechat or sup...@easeus.com, we will arrange a remote session as soon as we can.
I downloaded 2 free software recovery apps/programs from safari in panic because I lost a file I needed for a final exam. But I didn't really take a minute to think that it could be dangerous. Now that the final is over, I uninstalled them but it seemed like one of the programs came back up the next time I was on my laptop. I finally went away after the second uninstallation, but I'm just slightly concerned that there could be issues/the program isn't safe. Thoughts?
Well, there is no way to have any "thoughts" when you don't provide any information. I have no idea if "any" software recovery app could be dangerous. Did you by it at the app store? Or download it from an unknown site? You'd have to tell us the names at the very least.
Again, in my haste I was pretty thoughtless about the source of the programs. One is called EaseUS Data Recovery Wizard, and it is from easeus.com. Another is called Disk Drill and it is from cleverfiles.com. Not the most promising in terms of safety, I imagine.
I had uninstalled them. Disk Drill has since never come back and has given me no obvious cause for concern. EaseUS, however, will sporadically show back up on my desktop screen, and I basically have to eject it to remove it. That has me more worried.
We need specific info because there are many apps, some may be ok and others not. Also, the source of the download is important - from the app store is best, directly from the developer mostly ok, but other download sites advertising free stuff which costs money elsewhere are to be avoided. Disk Drill is well known and should be fine. Never heard of the other one, so I have no opinion except, while doing a search on it, I came across something that said that it will automatically encrypt while trying to recover data. That, to me, is not acceptable unless I would be able to opt out of that.
So, I suggest you contact them and ask about proper uninstall methods on a Mac which do not leave bits and pieces behind and then try that. The radical solution is to erase the entire drive and start over, so let's try the easier route first.
I have used a free app for some time which quickly and easily completely uninstalls any app you put into its window. it is called AppCleaner. Simple and easy to use. I see no reason to erase the hard drive.
Rather than downloading another third party app, I prefer using the developer's uninstall instructions. And, given what that app does, if it cannot be removed completely (as it is, it keeps re-appearing), it may be the best to erase the hard drive.
Cleaning apps are not necessary on a Mac and they usually cause more problems than they solve. I've seen several posts here where "AppCleaner" was the source of the user's problems. It is better to either manually rip the offending files from the system or better yet reinstall macOS or restore to an earlier backup.
Generally, Windows System will show you a pop-up message when you connect the uninitialized drive. Please click "Initialize" in the pop-up window or right click the disk in Disk Management to initialize the drive. You will be able to scan the disk after initializing the disk successfully.
The Initialization only re-allocates the disk so that it can be detected correctly by the computer. The data is still recoverable after initialization.
However, if the disk could not be initialized correctly, we are afraid that the hard drive has some physical damage and need to be repaired first. Please take a screenshot of the error message and sent to sup...@easeus.com and our engineers will further confirm the issue.
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