As per title can I "upgrade" from XP Home SP2 to Media Centre 2005 by installing over the top of XP Home ? I just want to be able to use the Media Centre Features for streaming video to my xbox 360 but I dont want the hassle of backing up every last bit of data and installing from fresh if I can get away with upgrading. MCE 2005 is just XP Pro anyway but I want to make sure before I try it And yes I am fully aware its not the best way to switch o.s. so no need for any commnets thanks. Any help greatly appreciated Cheers. B.