how to erase hard drive on bios screen

[Guest]

Hello,My computer just stopped showing the start up screen it does not boot up the os. although its loads up to a blue desktop screen with the cursor only, i tried installing windows 7 and xp on it but it still doesnt work, even tried recovery, still doesnt work, On bios hard drive test showed failure

 

[Ijack]

On bios hard drive test showed failure

Then perhaps your hard drive has failed? Do you have access to another one that you could try.