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I first noticed this problem a couple of days ago when I arrived at work to find my PC booted with flight mode enabled.
I initiated a shutdown yesterday only to find that my PC's screen went black for a short period, and then bumped me back to the login screen, now showing the aeroplane icon in the tray.
Testing this further this morning, the problem seems quite consistent:
- Click "Start" button
- Click Power icon
- Select "Shutdown"
- Normal shutdown stuff happens, screen goes black.
- After a short period the screen comes back on, returning me to the login screen, this time with flight mode enabled.
Between 3 and 5, I don't touch the machine or any associated peripherals, etc. I've uploaded a video here which demonstrates 1-5 happening. I don't really see anything out of the ordinary in the Event Viewer around this time.
OS: Windows 10 Enterprise N x64
Feature updates: Windows 10, version 1803 (installed 2018/07/24, so not that recently).
Is there a solution to this?