Windows 10: How can I change the display black borders on my windows 10 20H2

I am using windows 10 20H2, I want to put black borders on my desktop. So, how can I do this.

:)

 

black border

Hi Adele,

For us to isolate your concern with the black border on your computer, we would like to know the following:

• When did this happen?
• Were there any updates made on your computer prior to this concern?
• To make sure we have not missed on anything, what troubleshooting steps have you done so far?
• Send us a screenshot of the black border.

We look forward to your response.

 

Black borders on screen

Hi Lyn,

It is true that the challenges that you’re having with the black borders on your computer screen might be related to the Display Settings of your monitor just like what DaveM121 was suggesting. To better assist you with your concern, we need you to answer
the following questions:

• Which type of display cable are you using? ( VGA, DVI, HDMI cable).
• Were you able to update your display adapter drivers?

Looking forward to your response.

 

HOW TO REMOVE LARGE BLACK BORDER FROM DISPLAY?

Hi,

We would like to know more information regarding your concern with the large black border and missing Control Panel from its usual spot. For better assistance, please clarify the following information:

• How are you accessing Control Panel now?
• What troubleshooting steps have you tried so far?
• Can you send us a screenshot of the large black border that you are currently seeing?

Regards.