last time, I created a forum thread: https://community.norton.com/en/forums/norton-family-bug-causing-total-d...
Till now, does Norton Team fix this issue yet ?
For time being, I solved this by changing the Registry setting such that whenever shutdown or restart is clicked, there will not be any prompt warning some other program is running. And in order to prevent child from change this Registry setting, I prevent my child account from accessing regedit.
Hope Norton team find solution so that we do not need to do this high risk Registry editing.