Do not know when it started but the possibility of screen rotation stopped working.
It doesn't matter if Windows 10 "Tablet-Mode" in On or Off.
I don't have any updates (not for Windows and not from Levono).
You may open Action Center and see if Rotation Lock activited. Official reference from here.
No man, it's all gray and I can't even press on it..
Then you may follow this article to troubleshoot on rotation lock grey out problem in Win10.
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