newbie here. I have a sony pcv-rs 400 running on windows xp with 256mb RAM. It came with 2 drives, C and D. My c drive is extremely full, 500mb out of 15gb. The contents under my c drive are "doc and settigns", "program files" "google" and "printer" and "windows". I have used ccleaner, uninstalled several progs i don't use, ran virus scans, dskchk, and reduced recyling bin from 10% space to 3% space. I also moved my documents from C do D drive. D rive is where all my photos/music is and lately, that's wehre i've been storing programs i dl ,everything came out ok. I have norton running in the back ( but i do'nt think its that big to cause a problem cause even without it running, my pc still runs slow = 5 min start up, freezes, lags all the time). So now iam assuming its bec c drive is so full that is my everything lags. My question is what files/file extentions are safe to clean? does ccleaner clear out temp folders or do i have to do it manually? any more tips and tricks to clean my pc ( with as much details pls ) . Somebody advised me not to reformat bec my pc is not erally in bad shape, just lots of old programs clogging up space probably. The thing is, I can't find these old programs folders. pls thelp greatly appreciated.