Computer hangs and restart by it self

Nehas (Al) (425 Points)

23 August 2009  

My computer has got a problem

1st while we start it it just starts slow

then may error windows opes which slows down speed

then again it automatically hangs and restart

due to this if i m working in tally

i got my files corrupted everyday one

now what shld i do?

how to stop this computers problem?