Ok, here is the things guy, i read the forums and all and i finally got a modded BIOS patch for my EVGA 780i for the new BIOS P8, so i can activate my Vista Eternity, but here is the thing. I already have Windows XP Pro SP2 installed and activated on a different partition, so im DUAL BOOTTING Vista on a already XP PC (also this is not a dell is my own custom build). When i activated XP Pro, i dont recall being a OEM activation, cuz the steps that i took was deleting numbers from the registry, then phone activating a new CD KEY then checking registry and thats it, quick and fast and activated. But now by if once i flash my BIOS, will it afect my already install XP Pro? what can i do to make sure i keep a DUAL BOOT? or should i just delete XP and keep Vista? Any suggestion?