How can i choose OS. In my pc, there are two OS's installed, which are Windows 7 and Windows 7 Loader XE, my pc now always loads the Loader ones, which are error because it keeps giving me the "no xeldu" lines. What i'm asking is, how do I choose the Windows 7 one? My pc now loads straight away to the loader, without giving me the chance to go into the bootmanager by pressing "R" on my keyboard while booting. could anyone help?