Top 5 free antivirus programs

free antivirus

Antivirus programs are used by all those who are connected to the internet due to the fact that systems are vulnerable to outside threats without security. There are many antivirus software developed and released on the market, which makes it confusing to choose the best one.

Some of the deciding factors to determine the best antivirus are that system performance
shouldn’t be affected, every type of virus, malware, adware, spyware, ransomware and more should be detected and warned about, optimization with the system, ease of use and more.

Today, we will discuss free antivirus software that provides excellent protection covering every aspect that an antivirus should.

The top 5 antiviruses that are available for free are:


Bitdefender is an excellent security software for any system. Paid users are quite happy with the protection against even the most dangerous and latest malware. When it comes to the free version of the software, they offer much more than other free antivirus software.

The simple interface design, scan options offered with additional customizable features, software design and more, leads to its genius developers. The other awesome part is the no-pop up option, which automatically handles any imminent threat via autopilot technology and is available in the free version.

With easy installation, the active scan option is built into the installer. Even during the installation process, Bitdefender actively scans the system for a hassle free, quick installation. In case of malware present in the system, it does affect the installation time.

You have to create an account to start using Bitdefender which is irrelevant since you would be receiving excellent security for your precious data. Automated and manual protection options are available with additional options like exclusion, where you could add websites which need not be scanned when accessed every time.

100% detection against malware and 100% results in 0-day malware attacks, Bitdefender tops the chart as a free antivirus.

Avira Free Antivirus

Avira free antivirus provides many features like Password Manager, VPN, and a system optimizer. This forms the Avira security suite. You will also have access to an online dashboard to manage the antivirus and all its available options in the free version.

With Full and Quick scan options, Avira does justice even with the free version since it does provide complete protection against any type of threats.

The free version of the software collects data on user’s behavior, usage information, virtual movements. This can be easily opted out if you don’t like your virtual presence to be tracked via the company’s privacy policy.

It also scans every e-mail attachment the moment the mail is open. You have Full Scan, Quick Scan, Customized Scans, Rootkit scans in the free version of Avira. Software Updater keeps constantly updating the antivirus to protect against new malware or virus.

Avira has a moderate impact on the system’s overall performance making it a good choice available for free.

Avast Free Antivirus

Avast free antivirus provides two important things that every antivirus should – good security level and low system impact that are quite important. Many antiviruses might charge for a password manager, secure web browser and more but Avast.

Avast is compatible with Windows XP through Windows 10. Avast free version of the software does provide tight security, if anything suspicious is found, it is uploaded to Avast’s cloud servers for analysis and addition to malware database.

With more than 400 million users, lots of information and suspicious activity will be reported to Avast. Browser monitoring, email attachment scans are a few added bonus features of free version of the software.

Avast is known for its ability to find and destroy malware in the system or on browsers on a real-time basis. Full scan, Smart scan, outdated browser add-ons detection, weak passwords and more tools are available at your disposal.

Even during scans, Avast consumes few system resources with a low system impact.


Kaspersky free version is one of the better non-commercial antiviruses and a good malware detector and blocker. It also provides real-time file scanning while automatically dealing with malware wherever detected.

Password protection with the on-screen keyboard and anti-phishing protection is a highlight of Kaspersky. Limited VPN along with free bandwidth is provided by Kaspersky too.

Talking about customization, Kaspersky has a very high level of customization. It has a nearly perfect malware protection reputation in the market and the paid version does meet this expectation.

Some of the notable features of the free version of Kaspersky are malware detection, browser security, mail screening for any malicious software and phishing scams.  With 99.8% detection of malware over 5 months of testing, Kaspersky is one of the top tier antiviruses only next to Bitdefender.

Kaspersky has a simple interface, which is easy to use. All the options are available right on the home page.


The latest version has a new look and has been making a lot of noise due to its malware blocking test results. It is said that the free version of the antivirus aced the test with significant improvement over its previous version.

The user interface has different windows for different purposes. The main window shows only options related to scanning while other windows show security in one-page, advanced mode, auto sandbox feature and more.

The virtual desktop feature assists in sensitive online transactions by keeping the virtual desktop isolated. This avoids the issue of vulnerability due to isolation.  The Host Intrusion Protection System (HIPS) is an excellent feature but it is not clearly mentioned if it is available in the free version of the software.

This is disabled by default and you need to enable it in case you notice any suspicious activity. A bottle rescue disk can be created via this antivirus to all the confidential and important data.

Final Thoughts

The more secure the antivirus, the more you need to invest is no longer true. Some of the most secure antiviruses like Bitdefender, Kaspersky etc., are available free of cost for a limited time.

Once you experience its features and level of security, you would be more than happy to check out the full version as well.


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