Avast! Free Antivirus
Avast! Free Antivirus 2014.9.0.2016 was the first thing installed and then Comodo Internet Security 7.Why Using Multiple Antivirus Programs is a Bad Idea http://blog.kaspersky.com/multiple-antivirus-programs-bad-idea/
General: Uninstalling a third-party antivirus software http://www.avast.com/faq.php?article=AVKB11#artTitle
Avast! Free Antivirus
Upload and test suspicious files at one of these places www.virustotal.com / www.metascan-online.com / www.jotti.org if tested before, click new scan
Post link to scan result here
Some firewall info
http://www.howtogeek.com/172349/why-you-dont-need-an-outbound-firewall-on-your-laptop-or-desktop-pc/
http://forum.avast.com/index.php?topic=148270.0