By disabling every other usb device (card readers) I was finally able to clone my hard drive to a usb external drive, and I made a bootable disk. Nothing that I do in the BIOS will make the computer boot from the new usb clone. Will this usb clone never serve any purpose but to clone back to new internal drive, and serve as a backup? I bought it hoping it would replace the internal drive as the master drive. I changed the boot sequence, putting the cd/dvd drive first and the external usb drive second. And I listed the usb as the dirst hard drive and the internal drive as the second hard drive. All I get is a black screen and a blinking cursor.