Inspired by the following links,
http://www.neowin.net/forum/topic/1127588-how-to-pin-computer-to-the-windows-8-taskbar/
http://support.microsoft.com/kb/314853/ja
I figured out a way to one-click open a file explorer with the location of Desktop from the Taskbar.
1) Right click on the desktop and select new / shortcut
2) In the "Type the location of the item" box, enter the following
%SystemRoot%\explorer.exe "c:\Users\Z\Desktop", /E, ::{20D04FE0-3AEA-1069-A2D8-08002B30309D}
3) Press next.
4) For a name call it "Desktop" (or what ever you want)
5) Change the default icon to a more beautiful one if you want. (This is my original purpose to do this)
6) Click finish.
7) Pin it to the taskbar.
Now you can hide all your icons and leave yourself a clean desktop.
