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#11
Because you reformatted, you have to take ownership of the files. How on earth are you getting viruses ? Aren`t you scanning everything before you open it ?
What anti-virus are you using ?
Hope this helps, it`s the only tutorial I could find.
Take Ownership Shortcut
The User Account Control may also have something to do with it, I always turn it off, never had a problem and I`ve never had a problem accessing my data after an install.
I don`t recommend you turn it off, but you could temporarily, and see if you still get the message.
I really think taking ownership will do the trick. There is a tutorial here, you just have to dig it up. I believe Brink wrote it.