Windows 10: Transluscent box at top left of screen.

Hello everyone, long-time follower, first-time "contributor" here in the community. I have a transluscent box at the top left of my display. It is there, no matter what application I have open or not. This box does not appear, however, when I take a screen shot, so I've attached a photo here. I have access to any of the buttons "behind" the box, no problem there - but obviously something isn't right, and if it's my monitor Philips, it's still under warranty but not for too much longer, so I'd like to take care of that asap. It first appeared yesterday after I had been playing a YouTub

:)

 

small box top left

I"m trying to get rid of the small box at the top left of screen.

 

remove small box top left corner screen

How do I get rid of the small box in top left corner of my screen? Windows 10

 

Black box at top left of screen

Hi,

To better assist you, we need to ask a few questions:

• Were there any changes made before experiencing this issue?
• What troubleshooting steps have you tried so far?
• What applications were you trying to open?
• Can you send a screenshot of the black box that you see?
  

Looking forward to your reply so we can find the best solution for you.

Thank you.