Top 7 BEST Free Firewall Software For Windows 
Are you looking for the best firewall for your Windows 10/8/7 PC? Well if yes, then you are in the right place. Today I will be sharing 7 Best Free Firewalls for Windows PCs. When reading the news about data breaches, you probably wondered a lot if your computer was secure enough.
According to the Gemalto report, 3.3 billion data records were hacked (excluding the breach of the Indian government’s Aadhar ID) in the first half of 2018. Since 2013, 4,226 data records are lost or stolen every minute.
Windows has had its fair share of data breaches over the past few decades. It is the most used operating system worldwide. Approximately 87% of desktop/laptop computers worldwide use the Windows operating system. Due to its popularity, most viruses and malware codes are written for Windows.
Microsoft wasn’t interested in security threats in the early days. They finally introduced a powerful firewall and made some additional changes to the security features in Windows XP Service Pack 2 which was released in 2008.
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What is a firewall?
A firewall is a program that is used to improve the security of your computer. This tool prevents your computer from being accessed by an unauthorized source. It also filters network traffic and protects your computer from DoS (Denial of Service Attack) and DDoS (Distributed DoS) attacks.
A firewall is just a “wall of code” that checks incoming and outgoing data packets. Please note that a firewall cannot be used as a substitute for an antivirus.
7 best firewall for Windows 10 PC
Before installing and using the below-mentioned firewall software, you should disable Windows Defender Firewall because running two firewalls can cause some complications. Here is some free firewall software for Windows PCs that you can check out.
1. Komodo Firewall
Comodo Firewall is part of the Comodo Internet Security Group – Comodo Internet Security. This firewall is considered one of the best firewall for Windows 10 or any other versions. It is a third-party program for the PC.
Comodo Firewall offers some great features like ad blocking, dedicated DNS servers, and virtual internet browsing (it physically or logically isolates browsing from your computer’s operating system).
You can add programs to the block list and also remove them very easily. Some of the other features include a host-based intrusion prevention system, application sandbox, website filtering, and more.
Despite all the features Comodo has to offer, this firewall is foolproof and can be easily used by beginners. Remember, however, that this firewall will not protect your computer from exploit attacks.
Comodo Firewall is free, but you can upgrade to the paid version – CIS Pro for better protection. This software is compatible with Windows 7 and later versions. You can download Comodo Firewall from the button below.
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2. ZONEALARM FIREWALL
Zone Labs was developed by ZoneAlarm and was acquired by CheckPoint Software Technologies LTD in 2004. This firewall is part of ZoneAlarm’s Internet Security Services group. It is a free software suite, which means that it offers both free and paid software.
ZoneAlarm Free Firewall manages and monitors all incoming and outgoing packets of data. You can set the safety mode for different networks from setup easily. This software also prevents identity theft by protecting your data from malicious access.
All firewall features can be customized and configured easily. Well, this best Windows firewall can protect your computer when connecting to insecure networks and send real-time security updates to your computer.
The free version is an excellent choice for simple protection. But if you are looking for some extra features, you can check out ZoneAlarm Pro Firewall. This program is compatible with Windows 7, 8, and 10. You can download the free version from this link.
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3. A small wall
Developed by Karoly Pados, TinyWall is a “Free, Lightweight, and Non-Intrusive Firewall.” This program strengthens the built-in Windows firewall and makes it better and more secure with an easy-to-use user interface for modifying settings.
It is free software and considered to be one of the best third-party firewall software for Windows. You can easily add or remove applications from the block list and block them from accessing the Internet. TinyWall takes up about 1 MB of your hard drive space.
You can enable the automatic learning mode to have it learn programs that have access to the Internet. It also offers multiple modes of firewall, password protection, and more. TinyWall is one of the best firewalls for Windows PCs.
If you want a powerful, free firewall that doesn’t take up much of your hard drive space, this is the one for you. This program is compatible with Windows Vista, 7, 8, and 10. You can download TinyWall from this link.
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GlassWire offers the most aesthetic user interface on this list. SecureMix LLC is developing this utility. It displays beautiful graphs to provide more information about network activity and security.
Although you will need some basic knowledge about networking and security to interpret these diagrams and graphs, it detects harmful applications, spyware, and malware and prevents them from accessing the Internet.
GlassWire also monitors incoming and outgoing packets of data over your network and sends real-time updates to your computer. You can easily block or unblock apps to improve security. It can also be used to monitor bandwidth and protect your computer from identity theft.
You can get the tool for free, but it hardly provides a lot of useful features. You can download the Basic, Pro, or Elite edition for additional features. You can download the free GlassWire firewall from this link.
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5. Purple Block
PeerBlock is the free and successor program for PeerGuardian. It is a program that prevents specific malicious IP addresses from reaching your computer. Contains a list of IP addresses that are harmful, for example, governments, corporate entities, and those that are flagged for anti-p2p activities
It doesn’t provide us with a lot of features, but it does its job of blocking IP addresses effectively. You can block ads, spyware, and other content. It allows its users to create a list of IP addresses that they want to block.
If you rely on torrents for all your downloads and share data through peer-to-peer networks, then this is the tool for you. This software is compatible with Windows XP, Vista, 7, 8, and 10. You can download PeerBlock from this link.
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6. EVORIM Free Firewall
It is a full-featured professional firewall. It works best in conjunction with the built-in Windows firewall. Evrim protects your computer from external and internal threats. It monitors incoming and outgoing packets of data and sends real-time notifications to the user.
It prevents malware from accessing the Internet, viruses, and worms from spreading on the network. Evrim also protects your data from outside access, thus avoiding a data breach. It provides a monitoring mode, where applications on the computer cannot access the Internet without permission.
Evorim Firewall provides a great user interface with amazing ease of use. This program is available for Windows 7, 8, and 10. You can download Evorim Free Firewall from this link.
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7. FIREWALL APP BLOCKER
Firewall App Blocker is a free program developed by Sordum.org. It has an easy-to-use and somewhat traditional user interface. This program is used to block or unblock applications, to block them, or allow them to access the Internet. Simple user interface and convenient navigation is the reason it’s on our list of the best firewalls for Windows 10/8/7 PCs.
All you have to do to block an application in this program is to drag and drop the exe files. You can also block an app by using the browse button and select it. It also has a WhiteList mode – which will block every app except for whitelisted ones.
The firewall app blocker doesn’t offer much of a feature. If you are looking for a relatively lightweight and easy-to-use firewall program, you can use this tool. Download the firewall app blocker from this link.
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Well, this was all for the best firewall for Windows 10 or 8 / 8.1 / 7 PC. If functionality and protection are your priority, you should use Comodo or ZoneAlarm firewall.
If you want an app that does its job and takes up less space on your hard drive, you should check out TinyWall or Evorim Free Firewall. Firewalls can only be used for primary protection.
All internet users are advised to browse and download very carefully. Happy browsing!
Frequently asked questions about the firewall:
Listed below are the most frequently asked questions about firewalls.
Q # 1) What is a firewall?
Answer: A shield or barrier that protects a private network from unauthorized access, and a firewall secures devices connected to the Internet or another network such as a local area network (LAN).
The purpose of installing a firewall on a computer, phone, or tablet is to protect users from malware threats that are based on data on the Internet or other connected networks.
In cyberspace, data is transferred between your computer and servers and routers. This data, which is transported in packets, is monitored by a firewall to identify and block any unwanted traffic.
The firewall accomplishes this by examining the data packets against the rules that have been set up. If the data packets comply with these rules, then firewalls will accept them. If they fail to meet the rules, the firewall either rejects them or blocks them.
Today, firewalls help protect computers and other connected devices around the world whether they belong to individual users, large companies, or a government.
Q # 2) How does a firewall work?
Answer: To put it simply, firewalls work by monitoring traffic to accept or allow “good data” while rejecting or blocking “bad or harmful data”. However, if we get into the details, the firewall will use one of the three methods or combinations to control the traffic flowing in and out of the network.
7 Best Firewall For Windows 10/8/7 PC (Free) 2021 From links given below;