There are free programs that will do "clean up" for you.
this is one I have been using for a year or so-
http://download.cnet.com/Glary-Utili...html?tag=mncol

just use the default settings one the 1-click maintenance tab

If you get brave you can explore other tabs too, it's pretty easy to understand.

Ccleaner is another good one -
http://download.cnet.com/ccleaner/?tag=mncol

I have them both installed and sometimes use one and sometimes the other .