Usually, I don't pay attention to this thing, I accidentally deleted the "display desktop" shortcut. Recovery method: to: c: / documents and settings / administrator / application data / microsoft / Internet Explorer / Quick Launch Create a text file called "Show Desktop .scf", the content is as follows: [shell] Command = 2Infile = Explorer .exe, 3 [taskbar] Command = Toggledesktop then you can see the shortcut!