And your temp files are stored under Temporary Internet Files in IE. Use Tools/Internet Options/General/Delete Files and Delete Cookies. That will free up a LOT of space on your computer if you've not done it. Like the defrag, you should do it often (I do mine every single day). You'd be SURPRISED what gets stored in 'temp'! :shocked After you do that, you'll have to re-Sign In on your sites, though. If you want to know more about 'keeping' your computer, you can PM me.
Sounds like you have a good processor, though, which is a good thing! :happy