October 28, 2012, 1:46 PM — Here are three ways you can quickly get back to the Windows 8 Start screen.
Return to the Start screen via touch:
Swipe the right edge of the screen, then tap on the Start charm.
Return to the Start screen via a mouse:
Put your cursor in the lower left corner, click the corner when Start appears.
Return to the Start screen via your keyboard:
Press the Windows key.
For more, see the original article at the link below.
Windows 8 Tips | Microsoft