Applications and Tiles
To access the Applications in your Start Screen simply swipe your finger up or down
to scroll through the tiles.
Also, you can swipe your finger left to access more Applications and settings.
If you see letter tiles in your app list, tap a letter tile to see all of the alphabet tiles
then tap a letter to quickly jump to the corresponding section in the app list.
To return to the Start screen from any screen, press the Home button.