If you access the internet, then having a good firewall installed on your computer is a must. The Built-in Firewall protects the computer from abusive threats of local programs, while third-party Firewalls offer two-way protection. They protect your system from malware and allows safe access to websites. However, firewall protection has been built into Windows 8 and thus, paying for a third-party firewall utility may not attract many people. Fortunately, there are a number of free firewalls available on the market that are worth considering.