Comodo Antivirus Review In 2021: Features, Pricing & More!

Comodo Antivirus (review) has been around for over a decade, building a huge fan base and naysayers. Its strength lies in a completely free and easy-to-use version. However, its features are quite flawed, its design can be a bit outdated, and it detects a lot of false positives.

So is this antivirus up to the task in 2021? Read this Comodo Antivirus review to learn all about its anti-malware capabilities and more.

Comodo Antivirus Overview

Price:from $29.99/year, 1 device
Free version:Yes
Platforms:Windows, Mac, iOS, Android, Linux
Article: Comodo Antivirus Review In 2021

Comodo Antivirus Pros & Cons

In my testing, I discovered a number of benefits and drawbacks to Comodo. Here are a few of the most crucial:


  • Feature-rich free version
  • Easy to use and comes with decent documentation.


  • Many functions do not work well
  • Get incomplete third-party test scores
  • Coding signs probably of poor quality
  • Apps look and feel stale
  • Incorrectly marks legitimate files as malware


Independent antivirus testing labs frequently compare antivirus programs. Comodo is not one of the most popular antivirus suites, so the test results are few and far between. AV-Test, an independent antivirus testing organization, reported that the premium version of Comodo’s security suite works well with real-world malware.

PC Magazine found that Comodo mishandled hand-modified ransomware samples. This tells you that its heuristic engine is not up to scratch. Advanced or custom threats can go undetected.

Comodo antivirus
Article: Comodo Antivirus Review In 2021

In my testing, I found that it incorrectly identified Lavasoft Web Companion as malware. Furthermore, it seemed to terminate its own components as if they were malware, which casts doubt on their effectiveness.

Based on the relative lack of unbiased information on Comodo’s safety performance, it is difficult to form an informed judgment.


To its credit, Comodo is packed with useful features. I reviewed some of the most useful ones here.

Default Deny Protection

Instead of allowing all files except those marked as malware to run, Comodo can block all applications that are not on your whitelist. In theory, Comodo has a large enough number of legitimate programs in its database that this feature provides a security benefit without usability issues.

Auto-Sandbox Technology

Comodo virtual scan
Article: Comodo Antivirus Review In 2021

When Comodo finds an executable that is not on your whitelist, it will run it to enter a quarantined environment. This way, you will feel confident that the programs you download will not steal your information or compromise your computer.

Game Mode

Comodo’s gaming mode disables annoying alerts from your antivirus components so that they don’t affect your gaming sessions. This feature has become quite common in home antivirus solutions. At the time of writing, Comodo does not appear to offer automatic play mode. As a result, you will need to activate this feature manually.

Email Security

Like many other antimalware programs, Comodo scans your emails (and attachments) for possible viruses and malware. It also helps prevent spam and other email threats.


Linux users, unlike their Windows counterparts, generally do not use an antivirus solution. Compared to Windows, Linux malware is quite rare. Additionally, Linux users tend to have better technical skills, making them less vulnerable to malware such as Trojan horses. That said, given the popularity of Linux on the server, Linux malware definitely exists.

Malicious GNOME Shell extensions, malware that takes advantage of bugs in common Linux software, and even malware in the Ubuntu Snap Store are all prominent examples.

To combat threats on Linux desktops, Comodo offers a version of its antivirus product for Linux. However, my experiences with this product were not good. Finding the Linux version of Comodo actually takes some work, it’s not on their main download page.

Once you have successfully downloaded the.DEB or.RPM file (for Debian and RHEL-based distributions, respectively), the installation fails. On Ubuntu, I got an error: “unsuccessful dependency: libssl0.9.8”. In other words, the Comodo package depends on a version of OpenSSL that has not been supported since the first day of 2016.

Since then, many high severity bugs have been fixed in OpenSSL. It does not bode well for an antivirus program to be connected to an old, insecure version of a critical crypto library. And their Linux support page shows an error too, so I couldn’t find any information to help fix the problem.

If Comodo for Linux is based on OpenSSL 0.9.8, it seems likely that the program itself, not the virus definitions, has not been updated since 2015. In fact, the last modified date of the first executable file within the.DEB file It’s February 25, 2013.


One of the biggest selling points of Comodo is its free tier. While other antivirus programs make you buy full protection and functionality, Comodo’s antivirus won’t cost you a penny. Other features, a kind of firewall, “safe shopping” feature, and web filtering solution, cost $ 29.99 per year for 1 device or $ 39.99 for 3 devices.

Ease of use

Good security software has to be easy to use. It should work as the user expects. Unless you detect a security problem, it should get out of the user’s way. To evaluate the simple use of Comodo, I tested the installation process and simulated normal use.

Comodo Installation

My test installation left something to be desired for a couple of reasons:

  • Installed bloatware by default. Comodo’s “secure web browser” is not required and could actually pose a security risk. This browser is based on Chromium, the open-source foundation of Google Chrome. However, unlike Chrome, Comodo’s browser doesn’t update as quickly and has introduced its own major security issues in the past. 
  • It took forever. Despite my 300Mbps internet connection and fast SSD installation disk, Comodo took disproportionately long to install. While installation speed is probably not your main concern when choosing an antivirus, it is a nasty sign.
  • Component installation for virtual desktop feature failed. On our test computer, Comodo did not install the components it needed to align this feature. Clearly, this functionality has not been recently (or extensively) tested enough.
    • Also, I assumed that it had been strange that the virtual desktop feature required the “secure” Comodo Dragon browser and thus the outdated Microsoft Silverlight browser plug-in. Microsoft Silverlight does not support any browser other than Internet Explorer 11; Microsoft officially disapproved of it in 2012.
Package corrupted error during Comodo installation
Article: Comodo Antivirus Review In 2021

Comodo interface

Like many other antivirus programs, Comodo uses a highly customized set of interface (UI) tools. As a result, its windows and user interface controls are not entirely in line with other Windows applications.

Comodo UI
Article: Comodo Antivirus Review In 2021

In my relatively short testing period, I discovered a number of annoyances and problems with the Comodo user interface:

  • When I maximized the scan window, the user interface did not work properly.
  • You cannot resize the main window. As long as the scan window doesn’t work when maximized, I think that window was resized by mistake. That said, both windows should be designed to fit any size.
  • The interface is always based on other applications. Some antivirus software relies on other applications for security-critical messages. Comodo does it indiscriminately, which somewhat frustrates the objective. When every window is “top priority”, nothing is “top priority”.
  • It looks old. The prettier Comodo themes didn’t work, letting me use a look that dates back to Windows Vista.

Comodo stability

On my second day of testing, I discovered the biggest problem yet. even though I manually disabled Comodo, it started a full system scan on its own. Clearly, something went wrong with the method. My test computer’s RAM and drive usage quickly ran out, forcing the machine to reboot.

It is possible that this experience was unique. However, that is unlikely: the test machine was a reasonably standard Windows computer.

Mobile app

In addition to its products for desktop computers, Comodo creates a mobile application for iOS and Android. Compared to their desktop counterparts, Comodo Mobile Security applications perform quite well. especially, they provide a VPN and fraud protection service.

Comodo’s mobile app is not an antivirus solution, but antivirus is generally not well suited to smartphones anyway. There are better VPNs and privacy solutions outside of Comodo; That said, their mobile app isn’t bad (especially since it’s free).


Comodo Antivirus Review offers a web knowledge domain for its products. Plus, they provide paid phone support on their GeekBuddy subscription of $ 199.99 per year.

Comodo support option
Article: Comodo Antivirus Review In 2021

When I encountered challenges while testing the Comodo software, I looked through their support website. The link to the article about your version of Linux didn’t work, which left a bad impression. On the other hand, the article on the virtual desktop feature was informative, although it did not help me install the components.

Final verdict

While Comodo Antivirus is available for a low price for free, it doesn’t compete well with other options. Comodo’s business customers and expertise are clearly found elsewhere – they are also a certificate authority and offer cybersecurity services to corporations.

Throughout my Comodo Internet Security tests, I came across many red flags. The components were not installed correctly. Features like the task manager don’t work. The Linux version may not be up to date since 2013. The scan occurred even when the software was disabled, locking my computer.

Most importantly, few independent security labs have evaluated its performance. If you’re looking to protect your computer from a good variety of real-world threats, other options might be a much better option too.


Is Comodo Antivirus good for Windows 10?

Not really. While Comodo advertises compatibility with Windows 10, and I can confirm that it works, at least to some extent, I cannot recommend it as a viable solution.

Is Comodo Antivirus still free?

Yes. Comodo offers a free and paid version of its Internet security software. While the free version has fewer features, it still contains the antivirus component.

Is Comodo Internet Security any good?

Yes. But it is certainly far from the simplest or perhaps one of the simplest.

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