How to change the presentation mode for screens in Windows 10
Display Switch is used to change the presentation mode for the main screen of Windows 10 PC, to show only on the PC screen ( PC screen only ), project the same content on the second screen ( Duplicate ), expand on all screens ( Extend ) or only the second screen ( Second screen only ).
This tutorial will show you how to change the presentation mode for monitors in Windows 10.
Change the presentation mode for the monitor in the Project flyout menu
1. Follow step 2 ( Project ) or step 3 ( Action Center ) below, depending on how you want to open the flyout Project menu.
2. Press the Win
+ P
keys or swipe from the right edge of the touch screen and move to step 4 below.
3. Open Action Center , click the Project button and move to step 4 below.

4. Click the desired presentation mode ( PC screen only, duplicate, extend or second screen only ). You can also press the down arrow key until you see the projection mode you want and press Enter
to apply.
For example, if you have a blank black screen and can't see the menu, you can do this below to restore default Extend settings.
Press the Win
+ P
keys, press the down arrow key twice and press Enter
.

Change the presentation mode for the screen with the command
Copy and paste one of the commands below that you want to use into the Command Prompt or the Run dialog box ( Win
+ R
) and press Enter
.
PC screen only
%windir%System32DisplaySwitch.exe /internal
Duplicate
%windir%System32DisplaySwitch.exe /clone
Extend
%windir%System32DisplaySwitch.exe /extend
Second screen only
%windir%System32DisplaySwitch.exe /external
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