Some ports are closed in stead of stealth

Hello Mr.Ben,
We apologize for the inconvenience. The use of ports can be changed from the AVG firewall settings. To best assist you with this, we will email you a link to get connected to our advanced support. You can contact them and they will fix this issue for you.
Thank you.

In the past I had McAfee protection. At that time all service ports were "stealth". Now I changed to AVG and now several servise ports are only closed in stead of stealth. It concerns the ports 136, 137, 138 and 445. I want them stealth. How can I do this?

Hello Mr.Ben,
We apologize for the inconvenience. The use of ports can be changed from the AVG firewall settings. To best assist you with this, we will email you a link to get connected to our advanced support. You can contact them and they will fix this issue for you.
Thank you.