This article explains how to mirror a laptop to a TV wirelessly or wired, and provides instructions on how to stop mirroring.
How to Wirelessly Connect and Mirror Laptop Screen to Any Smart TV (Without App)
All Windows 10 and Windows 8.1 computers, including laptops, have a built-in ability to mirror your screen to a TV called Miracast or Wi-Fi Direct. There are a few things to keep in mind though:
As long as both your computer and TV support Miracast, mirroring your TV is a simple process.
Make sure both your laptop and TV are connected to the same network, then go to Windows logo button (Start) > Settings > Devices.
