I've blocked as many telemetry domains as I can find as well as applied Blackbird and O&OSU10 and I still get minor updates and security updates (Defender inclu

I've blocked as many telemetry domains as I can find as well as applied Blackbird and O&OSU10 and I still get minor updates and security updates (Defender included) fine. I've deferred major upgrades at this point though because the last two hosed a few things on my system and reset a load of stuff I'm probably still in the process of finding out about.