My pc sends me hot y msgs of blue screen death?

ok so my pc was blue screening. i also have vista on here which i loathe. then being my day off i thought id get straight on this problem as last night i couldnt get my avg anti virus software of sorts on the pc. so after a bit of googling i found gmer. quick scan i disabled a few rootkit things. now my avg has installed nicely and is doing what its suppose to be doing but im still getting hot blue screen msgs about some kxldypow.sys. how do i stop it blue screen and this kxldypow.sys ? uming the kxldypow.sys is a bad thing lol. i would upload the results from the gmer but i cant because it wont finished because windows blue screens