I think many of you might accidentally deleted the Show Desktop icon in the quick launch bar. I also did accidentally deleted the Show Desktop icon at quick launch bar. Finally i found the solution to re create or restore this Show Desktop icon in quick launch bar again.

Just follow the steps below and you will restore Show Desktop icon back in your quick launch bar:-

* Click Start -> Run -> type Notepad and enter
* Copy the contents below to your Notepad and save as Show Desktop.scf





* Once the file created, drag the file to the Quick Launch bar.
show desktop, win xp, icon
* Done! You just restore Show Desktop icon.

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There are another way to restore show desktop icon in quick launch bar:-

1. Click Start >> Run >> type: regsvr32 /n /i:U shell32.dll >> and Enter
2. Wait until this there's confirmation pop-up from Windows:

3. You may check back at the taskbar, ShowDesktop icon should be there now.

credits: http://www.techiecorner.com/39/how-to-rest...ick-launch-bar/

Or you may just use Windows shortcut which is Winlogo+D to show your desktop promptly