To do that, you probably just pull out the display cables.
This can potentially cause damage to your display ports through the repeated plug-in and plug-out motion.
We have other ways for you to get the job done.

you’re able to now disable your 2nd and 3rd monitors without unplugging them, using only software.
Previously, you could simply select Disconnect this display from theWindows 10Settings app under the display controls.
However, this option has now been removed.

Select either monitor
Hence, we need to adapt to the new methods.
If you have 3 monitors, refer to the next section below.
you’re free to disconnect one of the 2 monitors in the dual-monitor setup using 2 methods.

Expand display settings
Show only on 2 will do the opposite.
From Quick Menu
Press Windows Key + P shortcut keys to fire up the Project quick menu.
Selecting Second screen only will show the display on the secondary screen while disconnecting the primary screen.

Select monitor to display on
However, you might use a third-party tool named MultiMonitorTool byNirSoftto manage your display devices individually.
It is a portable tool so it does not need installation.
spin up the MultiMonitorTool tool.

Projection quick menu
you might identify the display machine by matching the open windows in the section below.
If you want to connect a monitor again, select it and then toggle the Disable/Enable switch again.
you’re free to reconnect it later on demand.

Select display monitor to disconnect
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Toggle monitor

Monitor is inactive



source: www.itechtics.com