hi all, im new to the forums and indeed to vista as i just purchased vista home premium, my question is- i want to put a dual operating system with 32bit and 64bit(which i purchased from microsoft for £7) both loaded fine but im unsure whether i need to purchase another full license for my 64bit version or does my license allow me to use both on one p.c when i try to activate the 64bit version it says this license it being used(by me i hope) , any help would be greatly appreciated:D