Actually this machine was an XP media center. 3 DVD back-up. I have a borrowed uhum copy of Corp XP which is really nice, but DVD rom wouldn't read it, so I had to go back to the original from 2006. Good news is back crunch'n MW, AQUA and WuProp. Now to try to get my files back. Oh and this came with a already installed copy of Norton, but it's outdated. Going to have to go to Crapcast and get their free Norton.