i've just solved the blue screen problem after "preparing your desktop" on windows 2008 server with your help (http://serverfault.com/questions/410570/server-2008-blue-screen-after-login-no-desktop) but unfortuneletly for me i did many things before that through gpedit.msc specifically to restrict user access to windows programs, control panel, regedit, msconfig ... but when i finally can log on even with administrator i cant open anything at all... and the message at title always came up.. please help me i cant open anything, regedit, mmc, any administrative tools ....