2. Install XP on the new PC.
3.When setup checks Activation status, setup will detect you are installing on significantly changed hardware. You will receive a message that you have exceeded the allowed installations to install XP and you will be prompted to call the telephone number listed on the screen. This is a toll free call where available.
4. Tell the activation center you removed XP from one PC and installed it to another PC in compliance with the EULA. Other than supplying the AC with the 50 digit key, nothing else should or needs to be conveyed. If you did not register, there will not be any record of your personal identity transmitted during the activation. If the optional registration was completed, then that information will be transmitted during the activation process.