Not quite blind. I and others have been trying for several days to get posters to check into any Third Party Programs they may be using that might be causing conflicts with updates, I'm glad to see someone finally started doing it. Yes Antivirus Software (I specifically mentioned Norton yesterday because the person I was talking with in this thread was using it) is a Third Party Software IF you're paying Norton or McAfee to provide you with the same coverage Windows Security already does https://support.microsoft.com/en-us/help/4013263 which, together with a decent pop up blocker---I use the free Adblocker Ultimate from the Microsoft Store---keeps the bad stuff away very neatly at no additional cost to me.
Which is important when you're almost 70 and on a fixed income.
https://kc.mcafee.com/corporate/index?page=content&id=KB52624
PLEASE ask your Third Party Providers before raging over here!