I know this is probably a stupid question but I have a friend that two hard drives in his PC. On the one drive he wants to have his Win XP Pro. On the other Win 7 Pro. But his question, that I’m not sure how to answer, is if he’s all ready booted into win xp can he somehow press a button or key and go to win 7 or the other way around. He says that a long time ago he was able to do this with 98se and xp. but I’ve not done anything like this before and was wondering if it was possible or not.