Stop pop ups in Norton 360 Gold

I have just installed Norton 360 Gold, and am receiving pop ups about Google Chrome usage (low memory), reminders to remember my password, and pointless notifications of background tasks.  I have tried to find out how to disable them and all I can find is forum threads from 2011 - 2013 saying to go to -

Setting - General- Performance Monitoring

OR

Settings--> Miscellaneous Settings --> Norton Task Notification

Neither of these is available !  I am running Windows - PLEASE HELP AS IT IS REALLY ANNOYING!

 

Thanks in advance