Question Blue Square appearing on boot

Azuller

Honorable
Dec 18, 2013
7
0
10,510
0
Hello,
I went to bed last night with my computer happy and fine. When I woke up and booted it had a wired blue Square appearing on the bottom right of the monitor. No idea where this came from.

Here is a video of booting and what it looks like
https://streamable.com/qg93ur
 

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