I use McAfee from Shaw. McAfee support explained that they can't assist and that Shaw has a dedicated team to support McAfee they provide.
So, how to disable McAfee notifications that online activity was blocked? I am using parental control and internet access schedule which makes it almost impossible for the kids to use the computer offline since NcAfee will keep popping up notifications that one or another program was trying to access internet (Windows internal system, other programs installed).
I looked all over the setup screens and disabled whatever I could but it did not solve the problem.