Returning to the Start screen in Windows 8

The new Start screen has all of the information you care about in one place. Real-time
 updates about things like news, the weather, and what your friends are doing are all  available
right here. No searching is necessary—Tiles are the quick way to see it all. Returning to
the Start screen in Windows 8 is just like opening the Start menu in Windows 7. The only
 difference is the addition of touch gestures. For example, you can use any of the following
methods to return to the Start screen at any time:

•   Swipe in from the right edge of the screen and tap Start.
•   Move the mouse to the lower-right or upper-right corner of the screen, and click Start.
•   Move the mouse to the lower-left corner of the screen, and click.
•   Press the Windows logo key.