I don\'t think it can be done by an \"average Joe\", if done at all, considering the OS is tied to the hardware with only a few changes allowed before a \"lockout\". If it\'s totally different hardware with a different bios, I wouldn\'t count on it working.
Just out of curiousity, why not just do a clean install on the other PC? You can easily get the Volume License version and a KeyGen on Kazaa so that it appears legit.
I would never condone doing something like that, but nonetheless, it\'s an option. Or you could just get a copy of Linux and just install on as many computers as you like without upsetting Uncle Bill & Monkey Boy Ballmer.