Display 'Show Desktop' icon in the taskbar Windows 10

In Windows 10 I always suffered without the old good thing:

Since Windows 98 through Windows XP and Windows 7 it was becoming smaller and harder to find and finally disappeared completely in Windows 10. So, let's bring it back!

1. Create Desktop.exe file, empty for now.

2. Right button click on it, choose the Pin to taskbar option.

A new icon just appeared in the taskbar, place it to the very left side where you can easily find it :)

3. Open the file with a text editor and paste the following code inside:

[Shell]
Command=2
IconFile=explorer.exe,3
[Taskbar]
Command=ToggleDesktop

Save it.

4. Replace the .exe extension with .scf    

The file icon changes immediately to something familiar!

5. Right click on the taskbar icon -> properties, update the extesion to map the link to the proper file

That's it! The taskbar icon is working as expected, it collapsing all the windows! But sometimes the icon does not change automatically, so it will change after the next reboot.