Roundup: The Best Free Firewall Software of 2015: Stop malware before it gets you

Introduction, ZoneAlarm Firewall and Comodo Firewall When purchasing a new Windows PC, it should be a matter of urgency to immediately install antivirus software that includes an effective firewall to stave off threats that might target your machine when it connects to the internet.All recent versions of Windows come with a built-in firewall and, whilst it's perfectly okay to leave your PC with this thin layer of protection, before long you will want something that covers a little more tha