After you use the BIOS setup of a Windows 7-based computer or a Windows Vista-based computer to change the Serial Advanced Technology Attachment (SATA) mode of the boot drive to use either the Advanced Host Controller Interface (AHCI) specification or redundant array of independent disks (RAID) features, you receive the following error message when the computer is restarted:
STOP 0x0000007B INACCESSABLE_BOOT_DEVICE
http://support.microsoft.com/kb/922976
STOP 0x0000007B INACCESSABLE_BOOT_DEVICE
http://support.microsoft.com/kb/922976
