The reason I asked is that sometimes a virus that attacks a computer will attach a file to the USB drive. Since your computer had viri, I thought there might be something left behind on the drive. Also, depending on your XP version, (SP1, SP2, SP3), Windows will not launch the drive contents if words such as "setup", or "install", is in the name of the file. What version are you running?
If the drive is empty, you might try reformatting it to see if it will help. If you already did that, then it's probably something deeper in Windows. There are many instances on google about USB drives and autoplay not working and there are many varied solutions. Which one will help your particualy situation, we have to find. However, its not good to have 2 threads running at the same time on the same subject, so why don't we call this one closed and continue in your original USB thread, after you final reply here?
Edited by makai, 16 March 2009 - 01:10 PM.