Download ZoneAlarm Pro
ZoneAlarm Pro team works with the anti-virus of your preference to block intruders and dangerous behavior of programs that can damage your computer. Even though this is only a trial version (3 licenses for 30 days) its updating constantly for quality and security purposes and the price is totally worth it.
It's also very easy to use for everyone, from students to computer technicians.
The new version of ZoneAlarm Pro 2012 can be customized according to the user needs. It provides 2 GB of on-line storage space to backup important information. The best part of this Firewall is that you have 24/7 instant access to live support chat.