System and Security action Center

is reporting "Windows Firewall and Norton Internet Security both report that they are turned off".
I assume that this is NOT good news so my question is, how do I turn the Firewall on (my W7 system)?
There was an option to Turn Windows Firewall On but when I clicked on it, nothing happened.
Again, that can't be good news and I would appreciate your help.
Thanks,
Bob

I am closing this thread myself.
A reboot appears to have resolved the issue, the Firewall indicator now says that the Firewall is ON.
Thank you for your help,
Bob