Avast! Premier on Windows 10 Pro and Windows 10 firewall

Hello everyone, I had a question about the Avast! firewall on Windows 10 Pro. Does the firewall on Avast Premier use the windows 10 firewall or is it independent?

I switched over to Avast recently and after installing and rebooting it kept the windows firewall on. Turning it off seems to maintain the avast firewall working but I am just wondering what is going on, how does the avast firewall actually take care of business? Independently or via the windows firewall?

Turn the Windows firewall off, Avast firewall will work fine on it’s own.