Re:QuickLaunch desktop icon deleted accidentally
Try this... was given to me by my brother and worked for me:
Restore Show Desktop Icon to Quick Launch on Taskbar
If the Show Desktop icon is deleted from Quick Launch, the procedure below will recreate the file.
Open Notepad and enter the following text:
Save the new file as Show Desktop.scf then drag and drop the icon on the Quick Launch bar or whatever location you want the shortcut to appear.