So did you accidentally deleted or unpin the Desktop tile in Windows 8 and you now don’t know how to get it back?
No to worry here is the easy fix:
While in the Start screen type Desktop, then simply right-click on it and click Pin to Start at the bottom-left side of the screen.
Or while in the Start screen, right-click on an empty space, then from the bottom-right corner of the screen click All Apps. Find the Desktop tile, right-click and select Pin to Start.
That’s all!