My computer crashed can anyone help me here?

My computer reported bad sectors and then shut down and restarted. No desk top icons or program files listed, no doc files of any kind. C drive appears empty, yet my quick launch Icons are still there and those programs work and I can indirectly activate some programs but cannot find them listed in “C” drive or in the start menu. Restore won’t work either. I ran all the virus scans I could and still nothing. Never seen anything like this before.