unmountable boot volume BSOD

[iNsAnE_crAzY]

when ever i turn the my grandmas computer on i get a BSOD w/ this info
UNMOUNTABLE_BOOT_VOLUME

STOP:0x000000ed (0X80E92D48, 0X0000032, 0X00000000, 0X00000000)

i havent started to work on fixing it yet. but, i just wanted some thoughts since i havent seen this particular one before. And safe mode or last know settings doesnt do jack crap. If someone wants sys specs ask but i just built it from scraps basically.

 

[Walleye]

i dun know... try re-recognizing the hard drive in the bios. if that doesnt work, repair install of OS?

OR you might have a corrupted boot sector on the hdd.