5+ best antivirus for Windows 10 in 2021 [Updated guide]

Experts say that in 2021, Windows 10 will be the most widely used version of Microsoft’s operating system worldwide. It is important to protect your PC from malware, viruses and other security threats. Here are some antivirus options for you to choose from if you’re looking for something new..

The “best antivirus for windows 10 for free ” is a question that I am asked often. This article will answer the question and provide 5+ best antivirus for Windows 10 in 2021.

Teodor Nechita (Teodor Nechita)

Editor for Managing Software

Teodor produces articles about Windows, Xbox, and all things tech-related on a regular basis, eager to assist people in need. When he’s not working, you’ll generally find him at the gym or on the golf course… Read more

29th of December, 2021

Originally published in March of 2021.

  • As we get increasingly connected to the internet, we become more exposed to malware and viruses, thus we must take everyday safeguards.
  • If you’re a home user, a free antivirus with a real-time shield and a web shield will usually enough, but you may also use additional security software.
  • Firewall, sandbox, wireless protection, anti-hacking, and anti-phishing are all features of advanced antivirus software that are critical for your cybersecurity.
  • The free and commercial next-generation antiviruses described here rely on machine learning and other AI technologies to keep your virtual identity safe.


ESET Antivirus includes all of the security features you’ll ever need to keep your data and privacy safe, such as:

  • Support for anti-theft
  • Webcam security
  • Setup and user interface are simple.
  • Support for several platforms
  • Encryption at the banking level
  • System requirements are minimal.
  • Anti-malware software that is up to date

The digital world is becoming an increasingly important aspect of our lives, but cyber attacks are also getting more prevalent.

Malware evolves at a rapid pace, and antivirus products stay up by regularly upgrading their libraries to detect as many new threats as possible.

If you haven’t yet installed an operating system update on your computer, phone, or tablet, don’t put it off. Additionally, any antivirus software should be kept up to date.

Having said that, we understand the value of an antivirus product and how comforting it is to know that you may use your computer and surf the web without worry.

Working from home has also grown popular, and it goes without saying that security may be a major issue in these tough times.

Having active daily security running in the background of your work PC may help to protect your devices and data from hackers, fraudsters, and other potentially harmful threats.

Without further ado, we’ve chosen to compile a list of the top antivirus software for the year 2021.

We also want you to know that we will be updating this list on a regular basis, adding new entries as needed and modifying places as new information becomes available.



For many years, ESET has been a well-known antivirus firm. Their antivirus software protects against viruses, ransomware, worms, and spyware, among other types of malware.

LiveGuard from Internet Security by ESET, which integrates nicely with 2021, is no match for the most current attacks and dangerous behavior on your PC.

When it comes to keeping passwords secure, using several passwords on numerous devices, all of which are locally remembered, might be difficult.

If your device is lost or destroyed, ESET provides military-grade encryption for all of your passcodes, ensuring that nothing is leaked or stolen.

It’s vital to protect your data and camera against illegal access and use, as well as secure online payments and protect your online experience.

ESET excels in this area, so your virtual identity is always protected.

The following are some of the advantages of adopting Internet Security:

  • Install-and-forget antiviral software
  • Web-browsing security that is active
  • The use of as little energy as possible
  • Anti-ransomware and anti-spyware protection
  • Gamer Mode is a mode that allows you to play games
  • Payment security and online banking
  • It’s compatible with Windows, Mac OS X, and Linux.

There are three versions of the software: antivirus, basic internet security, and smart security.

The solution is lightweight, unobtrusive, and efficient once implemented. ESET protects your online activities, monitors your linked devices, and works in the background to provide ongoing security.


ESET Internet Security

A lightweight antivirus solution that provides all of your devices with the security they need against the newest viruses.


This is another of those solutions designed by developers that understand what consumers really want: privacy and protection.

While Bullguard specializes in both antivirus products and VPNs, we’ll focus on its antivirus since it, too, has shown to be extremely trustworthy in terms of providing security.

We favor Bullguard’s custom-built browser because it offers a safer way to access the Internet and a safer platform from which to perform online transactions.

It doesn’t install cookies, plug-ins, or extensions without your permission, but it does give browser-like features like address bar tips, recommendations, shortcuts, and more.

A user-friendly interface enables you to quickly uncover security flaws that can be remedied right from the interface, such as applying Windows updates.

Some of the advantages of utilizing BullGuard Antivirus is an antivirus program that protects you against viruses. are as follows:

  • Protection based on machine learning
  • Browser security is important.
  • Integrated game booster
  • Scanner for viruses
  • Firewall

It includes real-time protection, browser integration, email scanners, password managers, VPNs, and more, much like the other entries.

Fortunately, all of these tools are provided in such a manner that they will not interfere with your normal PC use.


BullGuard Antivirus

Machine-learning-based malware prevention, password managers, email scanners, and other tools let you secure your device in real time.


Another well-known antivirus product in the security environment is Avira. Over the last year, the developer has made significant improvements to the program in order to make it competitive.

As a result, Avira’s security suite currently contains a number of products, three of which stand out.

Free Security, Internet Security, and Prime are the three products offered by Avira: a free solution with the essentials, a typical antivirus, and a premium package.

Emerging threats and zero-day exploits may be detected and prevented with Avira Free Security.

You get a bevy of privacy and performance features, including a VPN and password manager, driver updates, and memory optimization, in addition to the free closed-source antivirus.

The following are some of the advantages of utilizing Avira:

  • Protection against ransomware and advanced online threats
  • Tools for professional tune-up
  • VPN built-in
  • Patching software and drivers
  • Customer service that is second to none

The drawback of Avira is that it uses more resources than its rivals. As a consequence, if your PC’s battery drains rapidly, this may not be the best option for you.


Avira Antivirus is a free antivirus program.

One of the finest forever-free antivirus programs available, with appealing upgrade choices if you desire more protection.


Even in 2021, Bitdefender has a strong antivirus technology approach that has always shown to be a cutting-edge solution for Windows 10.

Bitdefender is an award-winning antivirus company that has received widespread praise over the years for its effectiveness in combating malware while also having a minimal system impact.

Purchasing any of the Bitdefender antivirus packages will provide you with access to not only an antivirus, but a comprehensive security suite of tools that will make using your PC and accessing the Internet worry-free.

Bitdefender’s current product line consists of five separate products:

  • Bitdefender Antivirus Plus is a Software program that protects your computer from viruses is a software program that protects your computer from viruses
  • Bitdefender Internet Security is a software program that protects your computer from
  • Total Security by Bitdefender
  • Bitdefender Family Pack is a collection of Bitdefender products for the whole
  • Bitdefender Premium Security is a security suite from Bitdefender.

These five entries all have one thing in common: they prioritize the security of your computer.

Those interested in mobile security should know that Bitdefender hasn’t forgotten about them, and has created a solution particularly for them: Bitdefender Mobile Security.

  • Bitdefender Mobile Security is a security application for mobile devices (Available for both Android and iOS)

Users of Bitdefender for PC should also be aware that each variation has more features than the previous one, with Bitdefender Premium Security having the most, including a highly reliable VPN service

Some of the advantages of utilizing Bitdefender Antivirus Plus are as follows:

  • Unauthorized usage of your microphone and camera is prevented.
  • You may secure numerous devices with a single membership.
  • Real-time protection against cyber-threats is provided.
  • Anti-theft measures to keep your gadgets safe.
  • You’ll be given access to a high-end VPN (limited)
  • Allows you to remain anonymous while using public Wi-Fi.
  • Browser security built-in
  • Password manager built-in

It works quietly to remove any viruses or dangers that may be on your system after you’ve installed it, and then it installs other programs to assist prevent new threats from surfacing.

For those on a tighter budget, Bitdefender also provides a free version however it only includes the most basic capabilities.


Bitdefender Antivirus Plus

For a limited time only, get the greatest antivirus tool of the year 2021 at a discounted price!


The following name on our list is yet another well-known brand in the antivirus software industry. Norton performs an excellent job of keeping its malware databases up to date, with fresh updates arriving practically daily.

It runs quietly in the background, with no effect on your system’s resources, as seen by tools like the Task Manager.

Norton is distinguished by its multi-layered strategy to defending your device from attacks, which includes recognizing dangerous files, stopping downloads, and eradicating viruses and malware like worms and trojan viruses.

In order to guard against harmful emails, email scanning is required. Norton Antivirus scans both incoming and outgoing emails to ensure that no potentially malicious emails are sent or downloaded into the machine.

You’ll also get up to 2GB of cloud backup space to safeguard and protect your important data and documents against Hard Disk failure and theft.

The following are some of the advantages of utilizing Norton antivirus software:

  • Real-time protection that works
  • Password manager built-in
  • It has a built-in VPN.
  • Updated often
  • Low influence on the system

The disadvantage of Norton is that it is expensive per device, but it also offers good performance in the quiet mode while gaming.

All scheduled scans, including quick and vulnerability checks, are briefly suspended when you manually start the game mode.

If you want to play games, Norton AntiVirus Plus is a program that protects your computer from viruses is the best option.

Furthermore, some of their more pricey goods incorporate a VPN, making the subscription even more valuable.


Norton AntiVirus Plus

Multi-layered, intelligent encryption protects your devices from a variety of malware attacks.


Kaspersky Antivirus, an anti-malware product with a long history in the business, has joined the arms race against the ever-evolving malware menace.

This software utility has been around for a while, offering anti-malware solutions for both residential and big commercial contexts, with each product being tailored to the work at hand.

The antivirus disinfection function of Kaspersky might be unsatisfactory. Most antivirus applications erase the whole file when it gets infected with a virus; however, Kaspersky does not.

If the faulty file is not entirely erased, this may create problems in the future due to the clutter that will remain on your computer.

On the plus side, Kaspersky was previously used to discover MiniDuke, a kind of malware.

MiniDuke comes from a school of current espionage software designed for spying, according to a Kaspersky expert in spy gear analysis.

We can say that Kaspersky is handy if you operate remotely and fear that someone is spying on you and intending to steal your work since it was able to identify it.

Some of the advantages of adopting Kaspersky Total Security are as follows:

  • Easy-to-use
  • Use of limited resources
  • Transaction security
  • Password manager built-in
  • Compatible with PC, Mac, and mobile devices

Simply purchase a one-year subscription and you will never have to worry about malware in your home or company.

Among the many strengths and disadvantages worth highlighting, Kasperky takes pride in its transparency and the efficiency of its goods.



To identify both known and recently undisclosed hazardous malware, Kaspersky employs a digital-signature matching engine in conjunction with algorithmic monitoring.


This antivirus application has a particular place in the hearts of many users since it is the only antivirus product that includes a large number of tools in its free edition.

The Behavior Shield is one of its most fascinating characteristics. Avast analyzes the activity of individual programs on a computer using this feature in order to detect anything suspect.

CyberCapture is a feature in Avast Omni, Premium Security, and Free Antivirus that automatically identifies suspicious files and transmits them to the cloud for evaluation.

The free version may also help with password management, browser cleanup, and network security. It also offers a Do Not Disturb mode, which stops popups from appearing when you’re watching movies or playing games.

Some of the advantages of utilizing Avast Free Antivirus is a free antivirus program. are as follows:

  • Updated often
  • Resource footprint is little.
  • Virus eradication that is effective
  • During gaming and movie viewing periods, it operates quietly.

The disadvantage is that it has a poor track record for identifying and removing malware, spyware, and trojans.

We would not depend on Avast free antivirus despite its superb antivirus protection since we need continual protection against further threats.

Regardless, like with the previous entries, you get what you pay for, and subscribing to the premium version will unlock the full power of this tool.


Avast Free Antivirus

In malware blocking and anti-phishing testing, as well as evaluating the network and router for security issues, Avast comes out on top.

This brings us to the end of our selection of the top antivirus programs for 2021. We’ll keep updating the list as additional information becomes available so that you have the most up-to-date and relevant information possible.

If you’re thinking about updating to the newest operating system, have a look at our list of the top Windows 11 antiviruses.

1639642758_884_Best-antivirus-without-automatic-renewal-for-A-transparencyNow is the time to secure your computer!

Don’t leave your computer vulnerable! Get one of the top antivirus programs on the market and surf the web without fear! ESET Antivirus includes all of the security features you’ll ever need to keep your data and privacy safe, such as:

  • Webcam security
  • Support for several platforms
  • System requirements are minimal.
  • Anti-malware protection that is second to none

Which anti-malware program do you want to use the most? Please let us know by posting a comment in the space below.

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