well nowadays im getting a lot of requests form customers that have computer such as vaios and what not (prebuilt computers)... and they want me to reformat their ccomputer with a fresh install of their os.. but the thing is their system recovery cd that they got with the computer has been either lost or ruined or misplaced and they cant find it.. anyways... i was wondering that if i could just keep a copy of windows xp home oem on hand and then just use their cd key (from the back of the computer on that little sticker).. and just reinstall windows with that and just use their application recovery and driver recovery cds to bring their computer back to new again... any help would be appretiated.. thanks in advance