Hey, I have an 80gb hard drive (so not a lot) and for some reason recently it seems to just boot down for no apparent reason, then when it boots back up again my pc freezez (When I say boot down, I hear this noice that sounds like the hard drive cutting out then starting up again) the pc itself doesn't reboot it just stays as it is untill it boots up then like a say it freezez my pc. 
Is this an overheating problem. Or is it more serious,
thanks for your help!
Is this an overheating problem. Or is it more serious,
thanks for your help!