Via the Windows Settings Using the Registry Editor ... and make it 0 to disable the Show Desktop option. If you don’t like this feature or hardly ever use it, you can always disable it.
As we mentioned earlier, this Show desktop, not working issue might also occur after updating to Windows 11/10. In this case, you can go back to the previous version of Windows. However ...
You can take all your windows off screen at once in order to reveal the desktop. In Windows XP, 7, 8.1 and 10, right click on an empty area of the Taskbar and select Show the Desktop. THIS ...