This is what is supposed to happen with that option, in reality there is a very good chance that it just doesn’t shut itself off afterward. Back when I used the OS I would have it set to auto update and since I shut my computer off nightly I didn’t have a problem with it, but I found that it had a fairly good chance that if it updated when I shut it down my computer would still be running when I woke up in the morning. My work around that I put for it is I put a scheduled shutdown in task scheduler for early in the morning when I knew I was never up so if the system had restarted but failed to power itself back off again it would turn itself off.
This is what is supposed to happen with that option, in reality there is a very good chance that it just doesn’t shut itself off afterward. Back when I used the OS I would have it set to auto update and since I shut my computer off nightly I didn’t have a problem with it, but I found that it had a fairly good chance that if it updated when I shut it down my computer would still be running when I woke up in the morning. My work around that I put for it is I put a scheduled shutdown in task scheduler for early in the morning when I knew I was never up so if the system had restarted but failed to power itself back off again it would turn itself off.