Windows Defender Issue

[Your PCMD]

I have no clue where to put this so MOD's feel free to move...

OK, for the past couple of days I keep getting alerts on 3 endpoints about Windows Defender needing to have an update installed, even though WebRoot is installed and Windows Defender was disabled. After going through the processes, I noticed that Windows Defender was and was not disabled. Heres what I found when looking at the Startup under Task Manager. There are two (2) Windows Defender installed and one was disabled, the other not.

After research, it appears that going from 1709 to 1803 installs the second Windows Defender with so far no way to remove it. So I just manually disabled it and also disabled the background from Settings > Privacy > Background Apps and all so far is well. Hope this can help others.