iMedia Crash and wont boot

[htou]

My Pc has died. I have tried to recover it using the
recovery disk and that has failed. I cant even restore
back to factory settings. It spits out all these codes and
at the end its says, error reading c:drive abort, retry or
fail. Now when i boot up it asks me for a systems disk,
boot priority isnt set to a:drive. Whats going on.

I am tearing my hair out. In need of some
advice...urgently...