The best firewall for Windows will protect against incoming
threats and be able to block outgoing threats from malware that has
successfully infiltrated your system. A good firewall will know when it is
under attack because it will constantly scan the computer’s ports to detect
threats. A firewall applies rules to the packets it sees in order to enforce
polices. It knows when to allow or reject traffic. When it detects illegal
traffic, it applies filters so that only traffic that it defines as legal makes
it through.
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Comodo
Firewall Pro (Freeware)
Firewall Pro introduces the next evolution in computer security: Default Deny
Protection (DDP™). What is DDP? Most security programs maintain a list of known
malware, and use that list to decide which applications and files shouldn’t
access a PC. A multi-layered security application that will constantly monitor
and defend your PC from Internet attacks.
ZoneAlarm
Free Firewall (Freeware)
attacks at the front door and even catches thieves on their way out. Our 2-way
firewall proactively protects against inbound and outbound attacks while making
you invisible to hackers. It operates automatically, due to its powerful
DefenseNet cloud service, so users are not interrupted with unnecessary alerts.
ESET Smart
Security 6
security suite with a good range of features. ESET Smart Security protects you
and your laptop. Connect securely on social networks, browse the Internet or
just play online. New anti-malware advanced technology protects you against
threats that used to avoid detection—as well as browser and application
exploits.
TinyWall 2.1
apart from both commercial and freeware firewalls. TinyWall is a free software
to harden and control the advanced firewall built into modern Windows systems. TinyWall
does not annoy you with popups at all, yet it is still extremely easy to add
exceptions to your firewall rules, actively blocks hundreds of Trojans, viruses
and worms and does not require you to know about ports, protocols and
application details.
Ashampoo
FireWall FREE
firewall program can be quite frustrating. In addition to all the confusing
jargon, current firewalls are getting to be very big programs. Sometimes you
have the feeling that you’re installing an entire office suite instead of a
basic network tool. You probably know that you need a firewall program to use
the Internet safely.
Agnitum
Outpost Firewall Pro
against malicious software by proactively controlling how programs behave and
interact on a PC and preventing security breaches. Two-way firewall for secure
network connections. Proactive Protection module to block unknown and zero-day
threats, SmartDecision technology for fast decision-making in security issues
and web control with fast web content filtering to protect your PC from
web-borne threats. Self-protection technology to maintain continuity of
protection.
Sunbelt
Personal Firewall
share information with other computers through the Internet or a local network.
It also protects computers from external or internal attacks from other
computers. The Personal Firewall is especially useful for laptop computers
since they are easier to compromise because of built-in wireless access.