Another quick tip for those of you doing P2V’s. Check that Windows license type before you start the P2V. The main thing you want to watch out for is OEM Windows licenses. OEM licenses cannot be P2V as OEM licenses are forever bound to the hardware on which they are sold.
How do you tell what sort of license is Windows using? The Product ID is the key. You can tell what channel the media & key used to install Windows was from by the product ID. See here.