I use WIndows XP MCE. It all started when I tried to update Spybot. It would fail and I had to do a Windows Restore. Ultimately I decided to REMOVE Spybot. From that point on, plugging my HP external drive into the computer's USB port slowed EVERY PROCESS down (including bootup). SYMPTOMS WERE THE SAME TESTING THE DRIVE WITH TWO COMPUTERS (one NEVER HAD Spybot on it). Device Manager shows the device working; Computer Management shows it healthy and allocated. Windows Explorer doesn't show any files on that drive. HELP!!