I agree with Bob.
I stopped using PC Tools fw in v.3 because it kept losing my internet connection. In a thread in this forum Dan said he had the same problem & switched to another fw.
Now I see he is back to using PC Tools fw, so they must have fixed it.
I see no reason not to use PC Tools fw.
I went back to ZA after PC Tools fw v.3. I have tried a great many different fw's. I prefer ZA to any fw.
I plan on trying only one other fw, it's the one we all are waiting for!!!
I've tried many antiviruses , I prefer avast!.
I have no interest in trying another av!