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Random errors in files recovered from corrupted hard drive


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#1 DoctorZero

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Posted 20 May 2016 - 05:53 PM

I had a problem where a fresh install of Windows 10 trashed the file system on my external hard drive (NTFS).  I used Recuva, and TestDisk, and a couple other tools to recover the files.  The problem I'm seeing is that when I recover a file, there is about a 20% chance that there will be a random corruption in it.  For instance, a JPG file may turn purple half-way through the image (which seems to indicate to me that only one or a few bytes were corrupted).  Videos have garbage show up every 10 seconds or so.

 

What is strange is that if I recover the file again, it may be fine.  Or it may have an error in another part of the file.  I had another hard drive in this same enclosure before and never had a problem, so I don't think it's a problem with the enclosure, although I wasn't using it on Win 10.

 

Any ideas on what could be causing this?  I thought about trying another enclosure but Windows already corrupted the file system (see link above) so I'm afraid swapping enclosures may risk additional damage.  Has anyone seen this before?



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#2 DoctorZero

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Posted 21 May 2016 - 09:48 PM

So I eventually tried removing the hard drive from the SATA controller, blowing in it like a Nintendo cartridge (don't know if that had anything to do with it) and putting it back together.  This seems to have fixed it, as I was able to recover all my files without any errors!






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