hoje eu fiz a atualização do meu avast premier (29/09/15), apos atualizar, o firewall do avast não liga . Meu sistema operacional é windows 10 single language portugues.
Have you tried to reboot your system a couple of times?
Sometimes it helps
Hope it helps
Please post English here, else use the forum section for your language.
→ https://forum.avast.com/index.php?board=21.0