If Windows does not boot and you see a Default Boot Device Missing or Boot Failed error screen, change the boot sequence, perform Startup Repair, etc.

While starting your computer, if you get a DISK BOOT FAILURE – INSERT SYSTEM DISK AND PRESS ENTER error, this article would be handy for you.

"Disk Error" appears when attempting to install Windows XP via Boot Camp Occasionally users who are installing Windows XP on their Mac receive a message reading, "Press any key to boot from CD.