To Change the Start screen in Windows 10, do a right click on the desktop, open the Display Settings, select the correct monitor, then check the box «Set this screen as the main screen».
Explanatory video in French by Alucare, ideal complement to the page. View video (you can use YouTube's automatic translation)
How do you change your computer's home screen?
First and foremost, your computer needs to recognize both of your monitors. Make sure that each cable (often in HDMI) is indeed connected to the right one port of your graphics card. Once the screens are connected, everything is controlled entirely through the display settings from Windows.
Here are the steps to set a screen as the main screen :
- Make a right click on the desktop, then select Display Settings. You can also go through Start > Settings > System > Display.

- At the top, Windows displays a diagram showing your monitors numbered. Select the screen you want to set as the primary display.
Please note : Click "Identify" to see which number corresponds to which screen. If a second monitor doesn't appear, click "Detect" to force detection. If the problem persists and you see a black screen, check the cable, try another port, and update your graphics card driver.

- Scroll down to the section Multiple displays, then check the box Set this screen as the main screen.

It is on this main screen which will be displayed by default as the taskbar, your icons, and most of your apps.
You just want to duplicate Where extend How can I view the image without switching away from the main screen? Use the shortcut Windows + P on your keyboard. This quick menu offers four options:
- PC screen only
- Duplicate
- Extend
- Second screen only
It doesn't replace the full display settings for setting the primary monitor, but it's perfect for quickly switching between them. Also, remember to put your screen to sleep when you're not using it, to save energy.
In the same window, you can rearrange your screens by dragging the squares to adjust their position and their orientation (landscape or portrait) depending on how you use it.
How do I change the screen resolution?
The resolution determines the sharpness of the display and the amount of content visible on the screen. A higher resolution displays finer text and provides more space on the desktop. A lower resolution enlarges icons, which improves readability but reduces workspace.
Here's how to change the resolution on Windows 10 :
- Make a right click on the desktop, then select Display Settings.
- If multiple monitors are connected, first click on the the instructor in question (Each screen has a number.).
- Scroll down to the section Screen Resolution.

- Open the drop-down list and select the desired value (prefer the one marked «recommended»).
Each monitor can have its own resolution. This is especially useful when you combine a laptop computer and a large external display that do not have the same native resolution.
Selecting a non-native resolution may cause the image to appear slightly blurry.





