Ok I have a 500gig external USB hard drive that worked fine after plugging it in. However, if I reboot it will freeze when trying to start up. If I unplug it it stays frozen. But if I restart and unplug the usb then it will load and once it gets to the page that says windows I can replug it in and it will continue loading. It is almost as if my computer is searching for the windows load on the USB harddrive instead of the harddrive on the computer where it is installed. I have obviously found a way around my problem, but more of a pain in the but to have to go through this routine everytime to just get my computer to restart. Any help would be much appreciated. Thank you.