Vista is Installed on Sata drive 0 Win XP is installed on Sata drive 1 I dual boot by selecting the boot drive from the Bios. I would like to remove one of the HDD and still be able to dual boot Vista and XP. I can restore an image of either OS to a new partition of the appropriate HDD but No dual booting. How can I have both OS on One hard drive with dual Boot? Any help is greatly appreciated.