I have been drastically losing hard drive space, and I do not know why. I also have many programs that I can not get rid of, as well as pop ups that my gray ware finders can't find. So I think I want to just start over and wipe out my hard drive, renistall windows and live a new happy life. Is this possible? Do I need any software? Anything special I should know? Are they any avaible walkthroughs? Thank you.