Hello, Here is my doubt: I want to have triple boot, already have XP (installed first) and Vista installed, and want ad another XP instance, why? Because my actual XP instance is for me to do everything; watch movies, internet, play games everything, but a few days ago I was able to play all my games and all the sudden I can´t play them anymore, I get a blue screen with nothing writed in every game. I uninstalled every new program but with no luck, I think the culpright is the lots of programs installed, so I want an XP instance just to install games and nothing more, and why not use my Vista instance which is almost with nothing installed? Because windows Vista for now is BAD for games. So I want the actual XP to do everything except playing games, my actual Vista instance to play Halo 2(Vista only) and for testes purposes and a new XP partition for just games. How should I do to have a proper triple boot with everything? I am aware that after install XP there are a great possibility that I can´t boot to Vista anymore so I am asking; How should I do to have a proper triple boot with everything booting fine? Found these article http://support.microsoft.com/kb/919529 but if it says error reading disc at boot, how should I be able to access my ntfs partitions (they all are in ntfs) from DOS??!! I hate Microsoft! My disk management screen is in here: http://www.badongo.com/pic/731900 fell free to advice for example in which hard disk or what type of partition should I create to include my new XP instance.