How can I find out what's making this white box appear on my desktop on boot? It only appears for a split second, had to film it and pause the video when it came up. I don't see any text, just the white square.
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There are a couple of way's you might be able to find what's causing this.
Look for programs that start during or after the boot process:
Open Task Manager -- Type " Task Manager " in Cortana an it should be the first on the list.
Click on the " Startup " Tab and disable something you think may be causing it
If you are running CCleaner.
Go to " Tools > Startup "
I have never seen this before, If you find the cause I would be interested in what it is.
I couldn't see anything in any of those places that stood out but I have uninstalled malwaresbytes and it seems to have stopped doing it now. I guess that was it. Wasn't set to run on start up which was odd though.
Often these things are set to run on a shedule task check there as well
Possible it was Malwarebytes trying to quarantine an item on startup, and the item is no longer there. A quick flash of an empty Console window. If you put Malwarebytes back on, check to see if there is anything in the Quarantine section pending. Just a hunch, since you say it stopped when you uninstalled it. Of course if you put Malwarebytes back on, the Quarantine may be empty.
OneDrive updates often display a command prompt box on boot.
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