Hi Bert,
Toggling Windows Key + D will minimize to the desktop and then bring back the minimized windows in W7 and W10.
(Winkey D is for w8?)
Your lower-right click-trick may be just clicking on an almost hidden "show desktop" icon that lives in the lower-right corner of the taskbar, sometimes obscured by physical screen settings that aren't quite right, sometimes hidden by taskbar settings, and smaller in W10:
"The Show Desktop button is a small rectangle in the far-right bottom corner of the Windows desktop. It is much smaller than it was in Windows 7, but clicking on the sliver at the end of the taskbar will minimize all of the open Windows and provide immediate access to the Windows desktop."
Cheers,
Carl Fogel
