"I faced the same problem myself, and while i was lookin around in forums I found no satisfactory answers. But finally i figured out the problem myself and apparently the solution is pretty simple. In my care the problem was a corrupted file on the desktop. In your case, This file may be anywhere in the users folder. Here are the steps i followed to get rid of it:
1. First identify the file. (in my case it was a flv file)
2. Uninstall all programs associated with the file.
3. Restart and go to safe mode. Now you should be able to delete the file.
4. If the file cannot still be deleted or renamed, go to another standard user account and access the file from there and delete it.
5. There you go!"
N.B. Identifyin the file can be a headache. In my case it was right on my desktop but i didn't realis that this was the problem for more than one week. Do let me know if this works."
My CPU usage has also gone up since the .wav file has been on my desktop.
Someone else wrote: "I still do pc repair and 99% of Win7 problems are owner/permission issues. PAIN IN THE BUTT! Only problem I can find in 7, it is a disaster so far because it corrupts so often"
Surely some of you must have had this problem...?