Why not go for windows 8
cheap option windows upgrade if you have a version of xp, vista or above, even buy a copy of older windows version to start the process.
http://howto.cnet.com/8301-11310_39-57541490-285/how-to-upgrade-to-windows-8/
cheap option windows upgrade if you have a version of xp, vista or above, even buy a copy of older windows version to start the process.
http://howto.cnet.com/8301-11310_39-57541490-285/how-to-upgrade-to-windows-8/