It’s
 a good practice to install antivirus software having an effective 
firewall that will keep your machine free from threats when you connect 
to the Internet.
New PC’s with recent Windows version has a default firewall but 
covers the basic need, you require something extra and more effective 
layer of protection to safeguard your PC.
With number of option available in the industry, the competitive 
environment has come out pretty well, this means better service and 
protection from undesirable threats from the internet.
And today, we will share some of the best free firewall programs that will not cost any money, and they allow you to surf the internet worry free.
Also See : Best Free Antivirus Software
1. Comodo Firewall
Comodo Firewall can be the best alternative for users who want a 
security suite packed with the ultimate features. It’s ideal for newbie 
users and those who are technically advanced. Its active and powerful 
HIPS (application monitoring feature), referred to as “Defense+” is much
 better in terms of security performance compared to other paid 
products. The program allows better customization and control for 
inquisitive users.  Comodo has a “memory firewall” along with a sandbox 
component which restricts the way new software installations and unknown
 applications affect your system.
2. TinyWall 2.1
TinyWall 2.1 is a freeware that functions concurrently with Windows 
firewall while offering effective and simple double firewall protection 
to your computer. The program is tiny in various ways. The product is an
 outcome of the efforts of an individual and not a big company. The 
process of installation is simple and quick. The size of the installer 
is less than a megabyte. It has some configuration dialogs and a tray 
menu without the presence of a main window. The main objective of this 
program is to make Windows Firewall convenient to use and make it safer.
3. Ashampoo Firewall
Ashampoo Free Firewall is compatible with Windows 2000 and Windows 
XP, which is some kind of an endowment. The launch of Windows XP in 2001
 was something special as it had a built-in firewall. The program 
changed for the better in Windows Vista. However, the XP version was 
able to handle basic tasks skilfully. The free version goes beyond the 
fundamental firewall with some bonus features. It resists termination 
and internet based attacks.
4. Private Firewall
PrivateFirewall is an essential program for your computer if you want
 to keep it away from threats and attacks. It’s free without any 
third-party programs, ads, toolbars or additional piggy-back add-ons. 
The program recognizes and blocks any activity related to malware, 
phishing, hacking  and other threat types. it has a complex user 
interface and is ideal for advanced users. it allows you to be careful, 
aware and better- protected.
5. Outpost Firewall Free
There are three distinctive elements of Outpost Firewall Free. The 
first is that it’s totally free where you just need to download, install
 and use it without any restrictions. Secondly, it’s more powerful and 
better compared to Windows Firewall since the latter is ponderous and 
has a shortage of outbound filtering during default settings. The third 
point is that it has numerous advanced features which is better than 
even some paid offerings, such as proactive protection which safeguards 
against unknown threats.  The program is based on a commendable 
technology which has been used in many advanced Agnitum products.
6. Online Armor Free
Free firewalls carry out a pretty good task of keeping your computer 
away from threats. However, many users opt to go the extra mile by 
getting a premium firewall. Online Armor from Emisoft is free for just 
30 days following which you need to pay for its services. The program 
has lots of configuration options like blocking traffic from particular 
nations which are popular for hosting hackers. While installing this 
software, you need to disable your antivirus temporarily. It has four 
basic components-Web Shield, Firewall, Anti-Keylogger and Program Guard.
 Users have three modes to choose from. These are Standard Mode, 
Advanced Mode and Banking Mode.
7. AVS Firewall
AVS Firewall allows you to protect your computer from hacker attacks 
and unauthorized intrusions. Use this program to block undesired flag 
advertisings, banners and pop-ups. You can create your set rules for 
every application and particularize on which connections to be used. 
Every time any sceptical attempt to alter the registry contents occurs, 
the program adjourns the action with a suitable notification. Apply AVS 
Firewall to restrict admittance to unwanted sites. Also, you can create a
 whitelist of websites and URLs which you want to work with. It differs 
from other regular firewalls as it has extra protection modules-a banner
 blocker, a registry defender and parental control choices. Each section
 of AVS Firewall is shown clearly. Alerts are straightforward and clear 
as is the configuration.
8. ZoneAlarm Free Firewall
ZoneAlarm Free Firewall is an outstanding inbound/outbound OS 
firewall meant for users with all experience levels. It safeguards your 
system from intrusions and even program admittance to the internet. The 
program features a comprehensible user interface. The security settings 
can be easily adjusted for the needs of the user. It offers fundamental 
two-way defence-anti-phishing  protection and stealth mode. ZoneAlarm 
Free Firewall, however, lacks program-to-program protection.
9. Windows 7 Firewall Control
Windows 7 Firewall Controll safeguards both remote and local  running
 applications from unwanted incoming/outgoing network. Your computer is 
easily protected from malicious software and hackers with this 
application. If you want a firewall which protects your machine from 
inbound traffic and allows you to have a better control with minimum 
fuss, this program should be the best option. It’s already present on 
your computer with lots of easy to use options.
10. Anti NetCut 3
Anti NetCut 3 works in the background and identifies attackers who 
are trying to sniff or cut your data connection. Following this, it 
shows a warning message and initiates the anti-spoofing method to 
safeguard your network connection. In addition, it also protects your 
online privacy. It requires a simple set up configuration and even 
people with bare minimum technical knowledge can install this program. 
This free simple tool allows you to browse the internet anywhere
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