How to Duplicate, Extend, or Switch Display to a "Second Screen" in Windows 8 and 8.1
This will show you how to use Display Switch to change the presentation mode of your main display from your Windows 8, Windows RT, Windows 8.1, or Windows RT 8.1 device or PC to display on the PC screen only, duplicate on another screen, extend across another screen, or on the second screen only.
To Change Display Presentation Mode in Charms
NOTE: This replaced Presentation Mode in previous versions of Windows.
1. Do either step 2, 3, or 4 below for how you would like to open Second screen.
2. Press the :winkey: + P keys, and go to step 7 below.
3. Press the :winkey: + R to open the Run dialog, type displayswitch.exe, click/tap on OK, and go to...