I just want to change the deafult wallpaper ( http://www.neo-romantic.org.uk/xp/bliss.jpg ) with my own one and to set my own OEM here -> http://news.softpedia.com/news/How-to-Add-OEM-Logo-and-Information-to-Your-Windows-43797.shtml I see how to do it when Windows is installed but how should i modify the installation files ?