I didn’t see anything out of the ordinary, other than what I mentioned.
I’m only guessing that you have Program Updates set to Automatic, so when you started that update would have been applied requiring a restart.
That is slightly different from me initiating the Manual Program update whilst windows was running. Which required a restart for it to be applied. No other options or pre-checked boxes.
Virus Def info the same as yours, Program and UI versions in my signature. Edit - the only difference is the - UI version UI 1.0.838 - unless yours is a typo or a genuinely new UI version which may have generated those changes (check marks).