I have disabled Defender - I have other protection in place. Defender is just too much in my face all of the time. My other protection runs without needing to tell me about it all of time. I guess this attitude comes from being a SW developer/tester for so long that I don't have the time to continually (every 3rd or 4th day) reboot my machine and wait for this thing to do its update. We always used other protective measures.
This question is now moot.