Hello friends, I had installed Windows 7 on to my system. I had the big problem that my shut down button is being disappeared. As I am new to this operating system I am unable have the clue from where to start. I have not been tried anything to fix this major issue. It is been quite difficult for me to shut down the system with it. I usually shut down with the help of the task manager. Please help me what can i do now to fix this irritating problem.