Expand display on the computer, how does it work?

Ca
2

At the laptop with Windows 10, I have always been in the settings at events to stand on a projector AND an external monitor z. B. Videos or PowerPoint to run.

On the home PC, I've also connected a projector, but I can't push anything into the second screen, you know what I mean?

I want to see my desktop on the home PC screen and on the projector z. B. A program from a media library that I call via Firefox.

What do I have to do? On the laptop I can simply move the presentation to the area not visible on the screen or click on "Show extended display". But this is not possible on the home PC…

Currently I have to click on duplicate to see the image on the projector, then the picture but synonymous on the screen synonymous smaller…

Ga

Time with "Win-key" + "P" tried? There you can adjust the different modes.

pi

Exactly.