I’ve seen all sorts of little tips and tricks on how to get your show desktop icon back in Windows 7, but the truth is that most of them are too complicated to explain here.
And honestly, why do we need a show desktop icon proper when there’s already one in the lower right-hand corner of your screen?
If you click it your desktop becomes visible; hold your mouse pointer over it and the open windows on your desktop will fade. It’s just like the show desktop icon of the old days, only better!
Give it a try!