Hi,
To do this follow these steps:
- Do this on the computer you are using as the second monitor
- Click on the windows icon (bottom left)
- Type Project
- Click Projection Settings
- If you see the message "Add the "Wireless Display" option feature to project this PC" follow these steps:
- Click the Optional Features button
- Search for wireless display
- Install it
- Change from "Always off" to On
- Do this on your Main Computer
- Ensure both devices are connected to the same WIFI
- Hold down the Windows key + K
- Select the second monitor's name
- Done
Cheers!