EDIT: Also thought to add another tidbit. For the love of god, don't just leave your porn and "intimate" photos or anything else even the least bit incriminating or embarrassing on your computer. When I work on computers, I will never touch a file I don't have to touch and respect privacy. That said, there are cases when that data has to be handled or is simply stumbled upon. Also, having worked in a few computer shops in the past, I've seen many paid techs out there will snoop for entertainment. Basically, if feasible, don't have anything on your hard drive you wouldn't want another person seeing. You never know when you might find yourself in a situation that requires letting a professional nerd wrench around on your box.