Ok - trying to be a little light hearted about this but;
Windows is still, for me, about 3 out of 5 times not fully closing if it starts and gets the you need to update thing.
It’s a constant cycle of - Hai! You need update. Ok, download it. Wait. Run installer. Installer fails cause it can’t open file x for writing. Facepalm. Look at task manager. Yup - there’s interface.exe still running (no visible sign of outside task manager). Kill it. Finish update. Log in. Hai! You need update. Facepalm. Repeat.