Restore 'Show Desktop' Icon

One way to do this is by creating the plain text file with notepad...

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

...and saving it as ShowDesktop.scf - then drag it to your quicklaunch

You could also go to the run command and enter...

regsvr32 /n /i:U shell32

...hit enter - it may take a few seconds for the icon to show up.

house

do without it and just use the keyboard shortcut: windows key + d

It's much more efficient and it clears up a spot in your taskbar.