Thanks SpiritWind.
LOL! Yes, that's the reason I'm leaving Norton/Symantec behind. 90% of the problems I've taken to their tech support have been caused by a corrupted program, according to them, and I am urged to upgrade, to fix the problem, no matter how close my subscription is to expiring. And if it's anywhere near my renewal date, as it is now, it is, I believe, impossible to make them try to solve the problem, other than upgrading and renewing. Just the other day, I gave them a really hard time -- politely, but a hard time just the same. This was on their Chat Support, and the tech just hung up on me! I tried to get enough documented in the chat, in case the transcripts are ever read, to demonstrate the tech's petulance. Probably won't do any good. Man, would I HATE to work there!!!
But I still don't understand about the turning off vs uninstalling. I mean, I understand how the Windows fw is part of the entire os. The Norton fw IS sold separately, but in my case, it's part of Norton Internet Security; and as I said, doesn't appear that it can be uninstalled without uninstalling the whole thing. Maybe a better question would be what is it about the Windows fw, aside from being part of the os, that allows it to be safely activated and deactivated by switching it on and off? And what is it about other firewalls which makes it unsafe to switch off instead of uninstalling?