I use Win XP downstairs and Win 98 upstairs, cant I use to have Ubuntu upstairs but I couldnt quite figure out how to get a modem installed, so I reverted back to Win 98 until I get highspeed down my road...that or I get the computer downstairs and my mom buys brand new pieces for a new comp...I like this computer down here, it is awesome, slow, but it was my first build, it works awesome...