every time i try to open a program, windows has started asking me which user name to run the program under, like when your right click a program and hit "run as..".it just started doing that after i did an automatic registry clean with TuneUp Utilities, but i dont know if that has anything to do with it. i want to make it stop asking, and just open programs like normal, i.e. double click icon, program opens, etc. any help would be excellent, thank you.