How can I configure Apache virtual hosts to run on port other than 80

I've recently upgraded my laptop to Win10 (from Win7). Since doing so I've discovered that something is running on Port 80 so my Apache Local Server won't work as it did. I got lost trying to detect what it was on Port 80 (it's not Skype), so I'm trying to set up Apache to use Port 8080.

I have succeeded up to a point. If I enter 'localhost:8080' in the browser address bar (Firefox FWIW), I get the test 'It works!' message. If I enter my usual virtual host names and append ':8080' it works too. But surely I should be able to get it to work with just 'localhost' etc?

I have set httpd.conf to 'Listen 8080'

I have tried setting the first line of the v-hosts definitions to <VirtualHost *:8080> instead of the previous <VirtualHost 127.0.0.1> but it makes no difference.

I have tried appending ':8080' after the ServerName in the V-hosts file (which seems logical) but it doesn't work. I have also tried turning off my Kaspersky Internet Security (but obviously I don't like doing this too much). I have read several articles on Stack Overflow and elsewhere which come close to my problem, but they all assume that the steps I've taken already will be sufficient.

Is there something else I should have done?

Here is the screenshot from TcpView: