Hello all. I just purchased several laptops (11 total). They all come with COA's on the bottom of them, some are XP Home, some are XP Pro. I have a XP Pro CD but not the original installation CD's for the laptops... How can I install Windows XP and use the COA on the bottom of the laptops to install and activate Windows without ho'ing out the Windows XP CD key that came with the Windows XP CD I have?