I am running Norton Security Suite (thanks to Comcast).
In my "hidden icons tray (don't know what it's called)", I have the little shield icon with an exclamation point in a yellow triangle. When I open "Windows Defender Notification Center" (I know -- I'm not running Defender), under "Apps and browser control", it says, "Check apps and files is off. Your device may be vulnerable."
Is that something I need to worry about, or is Norton Security Suite taking care of that? Under Norton Security Suite, all the categories have a green check mark except for "Backup", which is turned off -- I am using Acronis to image my HD on an external HD, and I back up important files on a thumb drive.