Avast Internet Security removes my firewall rules on every boot

Hello,

Following the installation of Avast Internet Security 2015 version, I lose my firewall rules (“Settings” → Rules default = “Request”) with each restart my computer (Windows 7 Pro SP1). I had already seen this problem with version 8, but the problem did not appear all the time.

I uninstalled Avast with avastclear.exe in safe mode, I reinstalled, and I still see the same problem. I also tried the repair idem, as well as the normal uninstallation (Adding and removing programs).

Can you help me to found a solution

I have the same problem with the most recent version (Avast Business Security 2017, 17.2.2517) >:(

https://forum.avast.com/index.php?board=77.0