The computer came pre-installed with Windows 7. All partitioning steps are done (a partition is sized and ready for xp). During the installation process for Windows Xp, when I reach the part where it ask you to choose a partition to install xp on, there is nothing to choose from! Detailed Specs for laptop: http://store.microsoft.com/microsoft/HP-Pavilion-DM3-1044nr-Entertainment-Notebook-PC/product/C026CBA0