Really annoying, but if you try to unhide files and still don't see them, you can use both 7-zip or 7-zip portable programs to go on your flash drive or other removable media and delete a folder called RECYCLER and autorun.inf (it is ok to remove these files, but the delete is temporary). I used the avast! anti-virus and I can scan the whole computer, even the RAM. Still, it is still there. I had troubles with my flash drive, the computer not recognizing it. I just rebooted and it is ok. Also, when you get the autorun pop-up, you can see an open folder picture instead of the normal removable drive picture. This will show if you have it. It also shows up in windows explorer. Still can't completely delete it.