system
9
I had been using free version of avast for many months now. I have not got a single ad till date. Nothing, no popups or messages whatsoever. I am just enjoying it just like the premium version. Windows firewall does the trick. If you have different firewall program, you can just do well taming avast with it.
And since it is free version and avast chose to offer you with features, it also offers you to opt out of those during installation. Spend few minutes configuring the avast during and after installation. It helps in the long run.