My computer is setup as xp and vista dual boot(each on own drive). I'm loaning my main computer to a guy I don't know really well, since his computer crapped out on him (for a lan party), and he will be using the xp OS. My question is how can I keep him from accessing files in my vista hard drive? I have a password for my vista account, and thought if it was password protected, then xp wouldn't be able to open any files on the vista hard drive(i.e. access denied). However, that's apparantly not the case, since I have full access to all vista files from within xp. If it comes down to it, I could probably pull the vista hd out, but I really don't want to go to the bother. I don't think the guy will even try to mess with my stuff, but I'd rather be on the safe side, since he's a "friend of a friend" so to speak. My vista hard drive is not "shared." I need to know soon, any help is appreciated, thanks all!