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Windows 7: Corrupt files on USB drive?

14 Dec 2010   #1

Windows 7 Professional 64bit
Corrupt files on USB drive?

Hi and thanks in advance for your help.

I have a bit of an odd problem, I have an external USB 640gb hard drive (Freecom ToughDrive with Password encryption software removed using Freecom tool), I use it at home (on a new dell Windows 7 64 bit PC) to store all my data

If I take the drive into the office and plug it into my machine there (Windows XP) I can read all the files, copy them off, no problem, same with my Windows 7 (64 bit) laptop that I have at home as well and on my Mum's (windows 7) laptop.

The problem is that if I open a file on any of the non home PC's (a word document or a JPG etc) if I then save changes to the file, when I try to open it on the home machine it either says it is corrupted/unreadable or that in the case of a folder of documents I copied on yesterday in the office - that the folder contents were not accessible.

I have just tried opening a word (2003) doc that I saved on the drive in the office yesterday on my home machine and word shows that it is goobledygook, I have closed the file (without saving or editing on the home machine) unplugged the drive and plugged the drive into my windows 7 laptop and when I view the folder with the word file in, the file has now gone...

I have also noticed that when I have created this 'corrupted' file situation, when I then plug the drive into a different machine I get the windows "scan and fix" option. I have done that in the past and it has 'found' all the files that I corrupted on the other machines and stuck them in a $found folder as though there was actual hard drive corruption.

Until about 6 months ago I had a Windows XP machine and have been working with an external USB drive for years switching it between many different machines - I thought it was the drive (I originally had a freecom toughdrive 320gb) at first so I replaced that about 2 months ago when I realised what was going on but it hasn't made any difference.

Can anyone tell me what is going on and what I should do to fix it??

Thanks again


My System SpecsSystem Spec
14 Dec 2010   #2

Windows 7 Professional 64bit

Lots of people have read this and no one has replied so I am assuming this isn't something obvious - I was hoping someone would say "ah, you have it set to X you need to change it to Y"!

Anyway, has anyone got any suggestions how I can troubleshoot it further and try and work out what is going on?


My System SpecsSystem Spec
14 Dec 2010   #3

Windows 7 Home Premium 64bit

is it only the when you open the files in work that they get corrupt and they are ok when you open them on any of your home machines???

im not sure what could be goin on but is it possible that your work machine may have a virus???? this is what might be corrupting the files? sorry but its all i can think of!"
My System SpecsSystem Spec

14 Dec 2010   #4

Windows 7 Professional 64bit

Graemzy, thanks for the reply. No, it is if I open files on the USB drive on any other computer that I plug the USB drive into and then save the file using the other computer back to the USB drive (or create a new file or folder on any other computer apart from the home one on the USB drive). When I then try to access the file that I saved using any other machine on my home machine, it is 'corrupted'. I have tried this with my work PC, my Mum's laptop and 2 laptops I have at home so I don't think it is a virus

I have a third USB drive here that I haven't tested this with, I'll try it tomorrow and see if I still get the same problem
My System SpecsSystem Spec

 Corrupt files on USB drive?

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