Suddenly the desktop icon from my Windows 7 taskbar disappeared. Can someone tell me how can I restore the default icons of taskbar? Thanks.
To re-create the Show desktop icon yourself, follow these steps:
(1) Click Start, click Run, type notepad in the Open box, and then click OK.
(2) Carefully copy and then paste the following text into the Notepad window:
(3) On the File menu, click Save As, and then save the file to your desktop as "Show desktop.scf". The Show desktop icon is created on your desktop.
(4) Click and then drag the Show desktop icon to your Quick Launch toolbar.
P.S. If you do not have a Quick Launch bar, see: http://www.howtogeek.com/howto/windows-7/add-the-quick-launch-bar-to-the-taskbar-in-windows-7/
I've never seen a Desktop icon in Windows 7, just this subtle button named "Show Desktop". Does that suit what you want?