Greetings and thank you. Last night my computer froze, cursor frozen, and manual shutdown would not work, so I pushed ctl+alt+delete. The result was that my start button and all icons disappeared, leaving only my wallpaper. (I run Windows 7). When I try ctl+alt+delete now, nothing happens, and I can not access task manager or any other function. Right clicking also produces no result. The computer still will not shut down manually. Is there anything I can do? Thank you in advance for your response. I really appreciate it.