Best antivirus for Windows 10 in 2021 [Updated guide]

Teodor Nechita
by Teodor Nechita
Software Managing Editor
Eager to help those in need, Teodor writes articles daily on subjects regarding Windows, Xbox, and all things tech-related. When not working, you may usually find him either at the gym or taking a... Read more
Affiliate Disclosure
  • If you're looking for the best antivirus for Windows 10, options are quite vast.
  • It is true that some antiviruses do better on some levels than others, and we tried to look at several aspects.
  • You'll be surprised to find out that some tools can be used entirely for free.
  • Our list includes well-known names such as ESET, Avira, or Bullguard.
best antivirus 2021
ESET Antivirus comes with all the security tools that you may ever need to protect your data and privacy, including:

  • Anti-theft support
  • Webcam protection
  • Intuitive setup and UI
  • Multi-platform support
  • Banking-level encryption
  • Low system requirements
  • Advanced anti-malware protection

An antivirus program needs to be fast, efficient, and cost-effective, and this one has them all.

The digital world is becoming more and more part of our lives, but that also means that cyber-threats are just as abundant.

Malware is evolving more and more, and antivirus tools are keeping up, constantly updating their libraries to recognize as much of the new threats as possible.

That being said, we recognize the usefulness of an antivirus tool, and just how useful it is to know that you can use your PC and browse the Internet with peace of mind.

Without further ado, we’ve decided to create this list of the best antivirus tools that you can use in the year 2021.

We also want you to know that we will be updating this list on a weekly basis, adding more entries and changing positions based on whatever new information we get in the meantime.

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What is the best Antivirus for Windows 10 in 2021?

ESET Internet Security

best windows 10 antivirus

ESET has been a well-established antivirus company for many years. Their antivirus solutions protect against any type of malware, including viruses, ransomware, worms, and spyware.

Once installed, the solution is lightweight, unintrusive, and efficient. ESET secures your online operations, monitors your connected devices, and continuously works in the background to ensure seamless protection.

The tool comes in three variants: Antivirus, Internet Security and Smart Security, the first two ones having only limited features.

Here are the perks of using Internet Security:

  • Install & forget antivirus model
  • Active web-browsing protection
  • Minimal power usage
  • Ransomware and spyware shield
  • Gamer Mode
  • Online banking & payment protection
  • Suitable for Windows, macOS, and Linux
ESET Internet Security

ESET Internet Security

A lightweight antivirus solution that offers just the protection all your devices need against the latest malware.
Check priceVisit website

Avast Free Antivirus

This antivirus tool holds a special place in the hearts of many users since it is also the antivirus tool that comes with quite a lot of tools included in their free version.

Regardless, like with all of the other entries, you get what you pay for, and upgrading to the premium version will indeed unlock this tool’s full potential.

Sporting real-time protection, frequent updates, and a pageant for stopping malware before it even has the chance to look at your PC, Avast Free Antivirus is indeed an entry worth mentioning.

Here are some of the perks of using Avast Free Antivirus:

  • Frequently updated
  • Limited resource footprint
  • Efficient malware removal
  • The free version comes with tons of features
  • Works silently during gaming and movie-watching sessions
Avast Free Antivirus

Avast Free Antivirus

A free antivirus solution that will cover all the protection necessities of a home PC.
Free downloadVisit website

Avira Antivirus

best antivirus for windows 10 computers

Avira is another well-established antivirus tool in the security landscape. The developer has improved the software a lot over the past year to be competitive enough.

As such, the Avira security suite now includes several products, among which three stand out. A free solution with only the essential features, a classic antivirus, and a premium product: Avira Free Security, Avira Internet Security and Avira Prime, respectively.

Here are the perks of using Avira:

  • Advanced web & ransomware protection
  • Premium tune-up tools
  • Built-in VPN
  • Software and driver patching
  • VIP customer support
Avira Antivirus

Avira Antivirus

One of the best forever-free antivirus software you can find + enticing upgrade options in case you want better protection options.
Free downloadVisit website

Bitdefender Antivirus Plus

Topping off our list is an antivirus tool that has proven itself to be the best over and over again throughout the years.

Bitdefender is an award-winning antivirus developer that has garnered wide appraisal over the years thanks to its efficiency in fighting off malware that is also balanced out with a low system impact.

Once you’ve installed it, it works silently to remove any infections and threats that may be on your system, and then it installs additional tools to help prevent future threats from appearing.

Getting any of the Bitdefender antivirus products will give you access not just to a typical antivirus, but to an entire security suite filled with tools that will make using your PC and browsing the Internet a worry-free experience.

The current Bitdefender family of products is made up of 5 different products:

  • Bitdefender Antivirus Plus
  • Bitdefender Internet Security
  • Bitdefender Total Security
  • Bitdefender Family Pack
  • Bitdefender Premium Security

All of these 5 entries share one common goal: they hold your PC’s security as their top priority.

Those interested in Mobile security should also know that Bitdefender hasn’t forgotten about them providing them with a product just for them:

  • Bitdefender Mobile Security (Available for both Android and iOS)

PC users should also know that each variant of Bitdefender for PC comes with more features than the previous one, with Bitdefender Premium Security having the most, including a very reliable VPN service.

Here are some of the perks of using Bitdefender Antivirus Plus:

  • Protection against unauthorized use of your microphone and webcam
  • A single subscription gives you protection for multiple devices
  • You gain real-time protection against cyber-threats
  • Anti-theft features for your devices’ protection
  • You are provided with a premium-class VPN (limited)
  • Gives you anonymity on public Wi-Fi
  • Built-in browser protection
  • Built-in password manager

For those of you with a tighter budget, you should also know that Bitdefender has a free edition as well, although it only has the basic features included in it.

Bitdefender Antivirus Plus

Bitdefender Antivirus Plus

Get the best antivirus tool of the year 2021, now available at a discount price for a limited time only!
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Norton Antivirus Plus

The next entry on our list is yet another resounding name in the world of antivirus tools. Norton does a fantastic job of updating their virus databases, with new updates being available almost daily.

It works silently in the background, having a minimum impact on your system’s resources, which is something that you can see for yourself in tools like the Task Manager.

However, you can always opt for a more hands-on approach and perform a deep scan of your PC, in which case anything that even resembles malware will be revealed.

It also comes with a built-in password manager, firewall, and even cloud backup for up to 2GB of data.

More so, some of their more premium products also come with a VPN included, making the subscription all the more worthwhile.

Here are some of the perks of using Norton antivirus products:

  • Affordable subscription plans
  • Efficient real-time protection
  • Built-in password manager
  • Comes with a built-in VPN
  • Frequently updated
  • Low system impact

Get Norton Antivirus Plus


Bullguard Antivirus

This next entry is another of those products that were created by developers that know what users truly need: privacy and protection.

While Bullguard does specialize in both antivirus tools and VPNs, we will be mentioning their antivirus in this list, as it too has proven itself to be quite reliable in terms of offering you protection.

Like all the other entries, it comes with real-time protection, browser integration, email scanners, password managers, VPNs included, and more.

Fortunately enough, also like the other entries, all of these tools are put at your disposal in a way that will not interfere with your day-to-day use of your PC.

Here are some of the perks of using Bullguard Antivirus:

  • Machine-learning-based protection
  • Secure browser protection
  • Built-in game booster
  • Virus scanner
  • Firewall

Get Bullguard Antivirus


Kaspersky Total Security

Joining the arms race against the ever-evolving malware threat is Kaspersky Antivirus, an anti-malware tool that has a long history in the industry.

This software tool has evolved for some time now, providing anti-malware solutions for both home environments and much larger business environments, each tool being adapted specifically for their job.

Among all strengths and weaknesses that are worth mentioning, Kasperky prides itself with how transparent it is and how efficient their products are.

Simply get a year-long license, and you never have to worry about malware in regards to your home and business.

Here are some of the perks of using Kaspersky Total Security:

  • Easy-to-use
  • Light resource usage
  • Transaction protection
  • Built-in password manager
  • Works for PC, Mac and mobile devices

Get Kaspersky Total Security


That concludes our list of the best antivirus tools for the year 2021. We will be updating the list as soon as more information is uncovered so that we can provide you with the most updated and relevant information.

Which anti-malware tool are you most excited about using? Let us know by leaving us your feedback in the comments section below.

tipProtect your PC now!
Don't leave your PC unprotected! Get one of the best antivirus tools in the world and navigate the Internet without worries! ESET Antivirus comes with all the security tools that you may ever need to protect your data and privacy, including:
  • Webcam protection
  • Multi-platform support
  • Low system requirements
  • Top-notch anti-malware protection
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