Replaced Comodo as my choice for the best free firewall.It comes in with a OS firewall aka program guard n an inbound protection firewall.Has outclassed every other firewall in competition to emerge as the absolute leak proof firewall...recent testings have shown that...it performed better than Comodo n a hell lot better than zonealarm...the novice user might take some time to work around all the settings but is pretty darn good for intermediate and advanced users....it even shows how much each program that connected to the internet downloaded or uploaded individually it also shows the location of the server to which u are connecting and has a pretty good database of safe programs thereby reducing the no. of alerts u wud otherwise see...try it...u shudnt b dissapointed...