Your display will be split into two equal portions and displayed across the two monitors. Extend: If you want your display to be stretched across two monitors, select Extend.Duplicate: Choosing this option will project your PC screen on the secondary display unit.If your TV/monitor isn’t displaying anything, it may be because you’ve selected this option. PC Screen Only: This setting will only display your screen on your PC and no other secondary display unit.Once the settings come up, select your preferred projection mode. Simply press ‘Windows Key + P’ to launch the Projection Setting menu, or search for ‘Projection Settings’ in the Windows search bar. Switching to a different projection setting will fix the issue. If your secondary monitor/TV isn’t displaying anything, it is possible that your projection settings are set to ‘PC Screen only’. Windows 10 offers you several projection settings like PC screen only, Extend, Duplicate, and the Second screen only. If it does not detect the TV or monitor you’re trying to connect, move on to the next method. Step 3: Scroll down to ‘Multiple Displays’ and select ‘Detect’. Step 2: Select ‘Display’ from the panel on the left. Step 1: Open Windows Settings Menu and select ‘System’.