Have you uninstalled Norton with remove only? It happens some times after an update that a program doesn't run correctly, if you remove and reinstall it will be the same, hence remove only (number 5 second option)and install through my.norton.com:
Have you uninstalled Norton with remove only? It happens some times after an update that a program doesn't run correctly, if you remove and reinstall it will be the same, hence remove only (number 5 second option)and install through my.norton.com: