there is a free site called CCLEANER that will take off all the "shadows" of things on your PC Will NOT take off anything "saved" Mine was very slow and I ran that and now it is much faster. PIctures will take up all kinds of room. When you go from place to place on your PC it saves a copy of it to the Reg. each time you go there. I have bunches and bunches of pictures on mine and I clean it about once a week.