My screen has a black margin of about an inch on each side

How can I change or no this margin not every side?

Change the screen resolution:

1. right click on your desktop
2. click on properties
3. click on the settings tab
4. According to the resolution of the screen, drag the slider to the correct resolution
5. then click on apply. If the setting is correct check the change, if not try another resolution.

Tags: Windows

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