@wyndaviessaid The crazy thing about Norton Antivirus is that the uninstall option doesn't uninstall it. Supposedly this is a defence against malware auto-uninstalling it, but really it is so they can bug you to reinstall it.
To uninstall Norton Antivirus fully you need to use their uninstall tool - https://support.norton.com/sp/en/us/home/current/solutions/v15972972
I went into the program directory and manually uninstalled all the Norton files. Seems a lot quieter now.