If you’re using two displays as one extended screen, you can also use this menu to set which monitor will be on the left and which on the right.
From here, you can configure the brightness, resolution, and orientation of both screens. To further configure your second display, open the Start menu, click the Settings icon (the cog symbol), and choose System, followed by Display.
Most of the time, you’ll want the Extend option, which will allow you to open apps and windows independently on both screens. On Windows, tap Windows+P to switch between four display modes: PC screen only (only the original computer screen is active), Duplicate (your two screens show the same thing), Extend (your two screens act as one large display), or Second screen only (the external monitor is the only active one).
