Does anyone know how to load Windows onto an external HD that will perform an install once installed in a machine? Something similar to loading a ghost image onto a drive. I have a Compaq Presario 800 laptop that I want to install Windows XP on. Just a sort of refresh. But I can't install windows from disc because the bios won't set to boot from a CD/DVD Drive. So I need to load a Windows XP installation or pre-installation onto the drive so when I put it into the laptop it starts to load windows. Any ideas?