I run windows 7 using bootcamp on my mac. I have backed up my windows 7 partition using driveimage xml to an external HD creating an exact clone. I would now like to try to boot windows directly off the external HD. However, I cannot get the computer to recognize my HD (by holding down the option key) to boot from it. I have created a bootsector using bootsect and it still doesn't work. Since I have bootcamp I can't either seem to get the typical windows menu to boot from usb.