Here are the steps for changing your main monitor through the display settings on Windows 10 / 11
1. Open Settings app
- Press your Windows key (to the left of the space bar usually has a Windows logo on it) and type in the search bar Settings
2. In setting app find the System settings
- Click on the section shown here
3. Make sure you are in the Display section (left side of all sections)
- Press the Identify button in this page underneath the monitors area to have a large number appear on your screen identifying to you which Monitor corresponds to the monitor with each number on screen
4. Highlight the screen you want to make your main display
5. Scroll down to find a checkbox that says "Make this my main display" and check it