Just install Windows to some other hard-drive, and give #1 boot priority to it from the BIOS menu, and give the last priority to your old hard-drive, or don't give it at all.
After you are done booting Windows with you new hard-disk, you can transfer the files from the old drive to the new one.
[Edited by HonestGamer, 3/8/2011 2:08:12 AM]
* Updated game trainers and cheats daily
* Get notified when new cheats are added
* Request which games get new trainers
* Priority support with any problem