well, im no pro at installing OS's (im only 14) and im buying the windows 7 upgrade for vista home premium 32-bit version. im not installing the RC because i don't understand dual booting and ive read about it, and don't fully understand it. and i don't know anything about my mother board lol. the version number is 5.1.2600.150, that's all i know. if you know any updates, please tell me about them.