1. Open the Start menu on your Windows 10 machine.
From here, you can just search for Connected Device Settings in the Start menu's search field to skip a few steps. If not, read on.
2. Click on Settings.
3. Select Devices.
4. Choose Connected Devices.
5. Click Add a Device.
6. Select your WiDi (Wireless Display) receiver.
Your receiver may have a different name, usually it is displayed on the screen.
You may also be asked to enter a passcode, which is usually a number that is also displayed on the screen.
That's it. Your computer should now be mirrored on your TV.