Well avast doesn't attempt to control the windows firewall. In fact if you had the Avast Security Suite, which has its own firewall even that doesn't disable the windows firewall as it is designed to be compatible with it.
So I believe this is an unfortunate coincidence. If you have any other issues you want to discuss, then create a new topic so it can be resolved without being lost within this massive topic.
Let me say it in an other way.
Before 7 i didnt have any warning from Avast.
With 7 i have 1 warning saying Avast isnt protecting my system compleet. When i look what isnt protected it says thast Avast cant activate my firewall. Ok that was the first warning and i have looked into the forums for an solution.
Than i see that i must uninstal Avast with a special tool downloaded from Avast, so i did. In safemode .
Than i downloaded the new Avast 7 and installed it but now i cant access my email. Not from microsoft or from yahoo.
And i have that warning telling me that Avast is again not protecting my system again.
And whan this is an masive topic, than why is it so big? Something is TOTALY WRONG