To duplicate your monitor image to the projector, follow these steps. If you are using a dock, laptop & external monitor configuration, ensure your laptop lid is closed.
- On your keyboard, press and hold the Windows Key & tap the P key to bring up the project menu, then using your mouse, select Duplicate
To change the resolution, right click on a blank area of your desktop, and select Display Settings
Select Keep Changes when prompted
- Note: Once you duplicate to a projector, you may have black bars on the left and right side of your monitor screen. To solve this issue see the KB --- Fix the image size on my projector and monitor at the same time