What is the actual error it shows, sometimes it can be as simple as a bad shutdown, as long as the drive itself hasn't failed everything else is a fairly simple fix (to get to the documents at least).
its not actually showing any error messages. just sits there waiting. have done the F2, the F4 and the F8 and followed the instructions. It scans the memory and the hard drive no problem. then it reboots and wants to scan again.
When I tried to take it back to a restore point it then told me it had no drivers and to restore them. My restore discs are stored away safely..... but at the moment its not recognising a pen drive or a CD drive from the C: prompt