I am not certain exactly what happened or what I negligently downloaded onto my computer, but windows explorer crashed (like it does from time to time) and when I restarted the computer (Windows XP SP3), there was nothing on the desktop other than my wallpaper. However, I could get to the internet by Ctrl-Alt-Del and then through the Task Manager Nonetheless, I cannot right-click on the desktop (that is, nothing happens at all!) and nothing happens when I press the Windows/Start button. I began trying SFC /scannow and it repeatedly asks for my Windows XP Home Premium CD EVEN THOUGH ITS IN THE DAMN CD DRIVE! Help Please!