when I try open user prefernces I get black window I try to reinstall Blender, I try load factory settings, I try install old Blender versions and I try remove startup file but I still have problem. I have Asus 1001 px with Windows 7 and I did not had problem before I installed latest version. Thanks for posts to topic.
Try updating your graphics card drivers.
Change a window to a user preferences window instead of selecting it from the File menu.