And finally to control incoming and outgoing connections, see: Firewall App Blocker (Fab)
Select the white list and then the programs allowed to connect to Internet, usually only the browser is enough, and you can additionally reinforce control with specific inbound and outbound blocking rules too.
The Firewall App Blocker (Fab) is working quite well using Enable WhiteList with Allow Internet Browser only
and is probably the easiest way to block unwanted internet traffic including Windows Update.
Thanks