MSCONFIG, dont let it start.
The real thumbdrive virus is the one with the AUTORUN thingy...
Copy.exe
If you hit that, your .exe files get corrupted. If im not wrong,
the one you hit IS copy.exe virus, but it had infected your window
files, that is why you cannot go more then 15mins on the com.
If you wanna remove it, try using Kaspersky. It works for me.