Hello all .. Today I have formatted my Pc and re-install fresh Windows Vista Ultimate .. after I finished installing everthing (Patches,Programs .. etc) .. I got 1 problem which is : When I press right click (mouse) on my computer then choosing (Properties) .. Then when I press Device Manager .. nothing happened ! and not responding ! .. But when I typed in run : devmgmt.msc It works ! .. Can anyone help me please ?