I want to check that I have written down the correct Product Key for my version of Windows XP Pro. I am changing to a larger HDD and am doing a fresh install on it using the full xp disk that came with my machine. Is there something I can type into 'run' to bring it up or do I need a utility to get at it, if so, which one please. I only want to check it, not change it. Cheers, Garry.