You can create “Show Desktop” shortcut yourself by this method:
* Open Notepad and paste the following block of code there:
* [Shell]
Command=2
IconFile=explorer.exe,3
[Taskbar]
Command=ToggleDesktop
* Write: “File Name”: “ShowDesktop.scf”; “Save As” “All Files”, and save it on your desktop. You can now drag and drop that new file on your taskbar’s left side to create a shortcut