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Question: Black Box has appeared in my Macbook Screen

Hiya,

An opaque black rectangle has appeared in the center of my mac screen and I am unable to remove it. It seems to mirror documents on my screen with a small delay and i can't seem to remove it.


I have gone onto several community pages and I have tried all given fixes to this problem, the most populer fix being "command + F5" which brings up voiceover options which are all turned off and are not part of the problem.


One notice is that I can drag apps that are in my hotbar into the black box and it deletes them from the desktop.


Any help would be fantastic,


Thank you.

MacBook Pro, iOS 10.3.2

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Mar 5, 2018 9:09 AM in response to justimagineproductions In response to justimagineproductions

Does this occur for a different user, e.g., Guest?


Does this occur after starting up in Safe Mode?


Consider the possibility of a third party software conflict. EtreCheck can be used to investigate what is installed.


What is a "hotbar"?

Mar 5, 2018 9:09 AM

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Question: Black Box has appeared in my Macbook Screen