Norton Auto Protect popup won't go away

The Norton Threats window won't go away.   It appears at the bottom right corner of my computer.   When I click the red X, it may slide out of sight but it returns within seconds.   I have run a Norton Live Scan and 'restarted' not shut down my computer with Explorer open and again later with Explorer closed, that didn't help.  I have run every Norton scan that my Norton subscription allows, that didn't help.  I downloaded Norton's browser, opened the websites I needed and that didn't help.   I reset my Norton setting to default and restarted, that didn't help.    It is in the way of what I am doing.   Because it won't go away, I can't get my work done.   

https://community.norton.com/en/forums/nortons-threats-blocked-popup-wont-go-away