When I ordered this new confuser I had never heard of windows xp professional, so, there is no way I could have known what I was getting. Give me credit for SOME brains, Grab! One can't know what one doesn't know. I bought this from a friend who is in the computer business; he has taken it back to re program it for win98. I could have saved us both a lot of trouble if he had told me what he was going to do.