Can't remember where I heard about this program. I'v been useing it for the past week, I like it ,you can see what it removes, play with options galore. Seems to remove alot of temps,cookies, dat files, very fast. I hope someone like zapjb or rossco would try and give an opinion .Free too, got to like that.
Link: http://www.ccleaner.com/
Edit: Should add mabye for the advanced user , but does have a backup option.
Bookmarks