I recover lots of graphics and HTML files that I have never even seen before. Where do they all come from?
You are probably looking at the files written to you computer during the normal process of surfing the Web. A Windows computer use an “Internet Cache”, which saves Web page files to your hard drive to speed up Web access. By examining the recovered graphics and HTML pages you can work out what a user has been up to on your computer – even if they have deleted the evidence!