I could not find an option under Boot Options, in the BIOS, of my P57W computer to boot off an optical or thumb drive.
How the hell am I to boot off these devices when I cannot see them in the BIOS? Gigabyte documentation, or the lack thereof, SUCKS big time. I finally found that you place the Windows 10 disk in the drive. Then boot, pressing F12. Now, I see what the BIOS does not-choices to boot from. I can select my image backup, from the list, and restore it to the computer should the need arise.