Causes of Windows Disk Boot Failure Incorrect Boot Order in BIOS: A device that doesn’t have the OS ranks first in the boot sequence. Damaged operating system: The operating system is corrupted and BOIS can’t recognize it. Corrupted system disk: The system hard drive is damaged, unreadable, or unrecognizable.
What is a disk boot failure?
A computer disk boot failure is an error indicating the boot device the computer uses cannot be read or doesn’t have the files required to boot.