computer keeps restarting help

[sckitz]

hello guys im haven troubles figuring out what is going on with little brothers computer idk what he did or why it got to this point but i need some help well he is running windows xp and he tells me he didnt do nuthen he just plays cs and downloads music
one day he went down stairs and tryed power on his computer and every thing was good it would load windows and then like ten minutes later it would just restart on his it keeped doing it for bout two weeks like that then all the sudden he would try power up and it would give you option to start last know configuration or safe mode so we would pick last know configuration then it would try boot then would just restart at the xp sign now it wont even boot into windows with out restarting we dont have the window xp home eddtion disk becouse his father bought it form his friend so i got my window xp professtional eddtion and tryed usen that and put that in to see if it work and it dont even do nuthen just keep restarting b4 it even boot into windows and i noticed that the pc is loud when it try to boot up then just restarts

any one got any idea how to fix this problem im sick of this kid usen my laptop all day!!!!!!!!

 

[PRVRT]

Try cleaning the dust out of it and check the fans. Sounds like it is overheating.

 

[sckitz]

fans come on it prolly dusty as **** ill take back off and clean her out good