Does anyone know how to install windows2000 over windows XP,when i tried to install windows 2000 right over XP a message came up saying something to the lines of this. You cannot install an older version of windows. (just a little info.) i have 2 hdd both ntfs format, with one version of windows (XP), i just want to install win2000 on my secondary hdd. I also tried to use the win2000 bootdisks and nothing really happened like it said it would. Thanks