my screen says no external display is attached. I only have one monitor__

I was on the computer just browsing and this square appeared in the middle of my screen that says No External Display is Attached. I only have 1 monitor.
 

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Last updated March 29, 2019 Views 2,442 Applies to:
Answer
We don't know if you have the exact issue because the original poster never cam back and clarified her situation. At this late date, it is doubtful s/he will be back. It sounds like you accidentally pressed the key that toggles your display to an external monitor. Usually you need to press FN and one of the keys with a picture of a monitor although sometimes there is a different key toggle for presentation mode. Refer to your laptop manual for how to toggle presentation mode on/off on your computer.
MS-MVP - Elephant Boy Computers - Don't Panic!
Elephant Boy Computers - Don't Panic!

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