Well, then you need to get the information yourself and provide it here. In addition to that, posting Avast 8 is not really sufficient, as an example. There are 4 variants of the product, two of which include a firewall - http://www.avast.com/compare-antivirus

Win 7 - 32bit or 64bit? All these details may be relevant.

And of course, if you do not know what kind of VPN you are using, sorry, you most likely are SOL