I turned of notifications for Cortana a week ago. after that my reminders aren't showing up in the action center. yesterday I got the anniversary update. after that in settings/ systems/ notifications and action most of the apps are not showing up for notification control. only alarm, mail, store, location, auto play, and Bitdefender. Cortana and other apps are missing from the settings. how to fix this problem. ? before a week ago or maybe before the update It was fine. ( sorry for bad English )