I purchased my father a computer that had windows 2000 on it. He wanted me to upgrade it to xp, so I purchased a windows xp oem disk from new egg. I installed it on the computer. I thought that it would simple upgrade to xp, but now windows xp and 2000 are on his computer simultaniously! When you turn the computer on it asks which OS you want to use. I want to un-install 2000, but this can not be done through the add-remove program thing in the control panel. How can I go about un-installing 2000, and just leave xp on the system?