BrokenSource

I've had my laptop for approximately two years and all of a sudden it has started to shut down constantly. I downloaded freeware to catch viruses, etc., and it cleaned my laptop up, but the problem still persists. It's really starting to frustrate me!!!!!!! I don't know if this is an overheating problem or what I should do if it's that or an internal problem. Any advice? I really need this fixed as it keeps shutting down while I write my final papers for school! I graduate in two weeks and I really need to fix this NOW! Thanks in advance! forex robot