Windows 8.1 Tips & Tricks: View Options From the Start Button
The Start button is back. It is similar to the Start button found on Windows 7. Left-click on the button (bottom left of the screen) and it will redirect you to the Start Screen. If you right-click on it, it will show options for Run, Search, Desktop, Shut Down, and many more.
Video: 8 Tips & Tricks for Your Windows 8.1 Start Screen