I have a dell dimension originally purchased with XP Pro and Office 2003 Pro. It was installed clean by a DELL technician first XP Pro then Office 2003 Pro. During the install the CD did not ask for a product key for either. The hard drive has since died on one of the machines and I need to reinstall. How can I legally get a copy of the media to reinstall the same way the DELL technician did where it does not ask for the key and used the one form the bios.