Can’t extend to second monitor Windows 10?

What can I do when my dual monitor is duplicating but not extending?

1. Make sure Extend is already selected under Project menu. Press Windows key + P keyboard hotkey simultaneously in order to bring up the Project menu. …
2. Update the graphics card driver. …
3. Reinstall drivers. …
4. Run the Hardware and Devices Troubleshooter.

02-Feb-2020