product # from invoice: SBY 6000PRO E7600/2/250/SUPM/W7-XPP/MT HP CPU
There were 2 computer ordered and they came with XP installed. We also received 3 WIN 7 restore discs because they tech that we work with said that XP would eventually be going out. One of the computers was for the main office and the other for me to work out of my home. So, I am not sure how to use these discs.