Hello, and thanks very much for your replies.
@Asyn, I was so tempted to disable WFW as I would prefer to have just one to contend with.
@Dch48, many thanks to you. OK, what you have written makes sense. I will leave WFW enabled and have the two firewalls on. I was just used to my previous full AV suite disabling WFW.
PS. To the moderators, thanks for this forum. [my first time to a forum, no I am not young, but I am not up with all the acronyms in the firewalls].
Cheers to all.