Ive had my computer For about a year i build it myself But randomly my computer just said shutting down and when i tryed to restart it it gets stuck on the verifying dmi data and wont go past that i cannot use f8 to access safe mode because that option does not come up n i have use the windows 64 bit disc i have to try and repair and recover and nothing works idk how to fix the issue i have also tryed making sure my bios was setup right and that didnt help ether i have windows 7 64 bit