Vista 64 Home Premium will not recoginize my dual processors after install. Is home premium for a single processor only? I thought Vista would do dual processors? If this is the case what a cheep OS. If it is for dual processors why can I only be running on one processor? How do I get the other processor recoginized by Vista 64 Home Premium? Any and all help is needed. Thanks. Right now I am dual booting to Vista 64 and XP x64 each on its own boot disk. XP x64 is working great but Vista is not working like it should and before I certify this computer with the OEM OS I need to get it working properly first or I will put this useless version of Vista on my wifes computer.