Is there someone very well-known with Vista Home Premium 32bit as well as 64bit systems? I ordered a fresh system disk for my innovative Gateway to have access to all my drivers if I should have to reinstall the system or repair it. I think it came with 2 disks, one with 32bit drivers as well as one with 64 bit drivers. Can I make use of the 64bit disk to switch to a 64bit system by doing a clean set up with the 64bit drivers? This is an OEM system disk.