I have Norton Premium installed. I also have Norton Privacy installed. Although I have the icon in my toolbar with the green arrow, Norton will NOT open. I reinstalled it yesterday and that worked but today, if I click the .exe file in the Norton Installation folder on my computer, it just tells me I already have it installed and it won't open- eft click, right click do nothing. Tried opening it from the apps list in WIndows 10- nothing. I know Windows Firewall is off because I have to keep enabling it and starting it every time I want to get an app update from the Windows store or when I want to install yet another Windows 10 cumulative update so I always remember to then disable Windows Firewall and stop it. I have no other anti-virus programs on my computer.