hello. i have an aspire 3100 and it is pissing me off. when ever i try to run a virus scan like malewarebytes it goes unresponsive and then a message pops up saying that windows isnt responding and my comp either shuts down or restarts and i cant get any thing done. also my hard drive only has like 8 gigs left and i have done disk clean up multiple times and it doesn't do anything. i am getting angry lol plz help or offer suggestions. and another question (woop ee) is user account control reliable for protecting your comp from unwanted changes?