Best Antivirus Software for Windows

Looking for the best antivirus software for Windows in 2021? If you are, then you have come to the right place. In this article, we have examined, analyzed and listed some of the best antivirus apps for Windows computers.

Antivirus apps are very essential for protecting your computer from harmful software, malware and viruses.

Best Antivirus Software for Windows

Avast is the Best Antivirus Software for Windows

Avast Antivirus

  • THE ULTIMATE SUITE: Security, privacy, and performance in one all-powerful premium package.
  • AVAST PREMIUM SECURITY: The ultimate in antivirus protection.
  • AVAST SECURELINE VPN: The ultimate in online privacy.
Avast Ultimate 2024 | Antivirus+Cleaner+VPN | 5 Devices, 1 Year [PC/Mac/Mobile Download]
690 Reviews
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Our pick for the best antivirus is Avast. It has over 500 million users worldwide and offers full-featured antivirus plus privacy protection in its package.

I have tested Avast with some of the best antivirus apps in the list and the comparison results that I found were enough to mark Avast as the best antivirus app ever.

Avast  is very easy to use. There is only a simple installation process.

Once Avast gets installed, it runs in the background to check for malware threats on your computer. You can manually do such checks as well.

Avast is very handy in cleaning infected files and folders. I have used it for a year now and the experience has been exceptional.

Additionally, Avast offers the following extra features:

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Bitdefender Antivirus

  • Speed-optimized antivirus protection for Windows PC
  • NEW: Anti-tracker – keep browsing data private, view and manage which sites can collect your data
  • IMPROVED: Safe Online Banking – a unique, dedicated browser secures your transactions; Advanced Threat Defense – uses smart...
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With a threat detection rate of 100%, bitdefender ensures you that it doesn’t miss any unrecognized threats. All computing is done on the cloud, enabling a few innovative performance tweaks. Bitdefender features security against both Mac and Windows-based threats. Other extra features include adware blockers, online phishing detectors, continuous protection with autopilot and more.

Bitdefender runs lighter and Windows will never experience a lack of resources due to bitdefender software.

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Kaspersky Anti-Virus

  • SECURES A SAFER TOMORROW: Get ready for future cyberthreats by using the world’s most awarded protection—winner of 73 out of...
  • BLOCKS DANGEROUS THREATS: Enjoy essential PC protection against malware like viruses, phishing, ransomware and more.
  • MAINTAINS TOP SPEEDS: Get the most out of your computer while Kaspersky runs quietly in the background.
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Kaspersky is another maestro in the security field, and as the company hasn't made so many changes in the latest version of this AV, it didn't need to.

You get very professional antivirus protection here with Kaspersky as it is a very highly rated software by independent testing labs. It has a very good volume of flexibility while virus scanning. Moreover, its module allows Kaspersky to find undiscovered threats like fresh ransomware.

The main feature of the Kaspersky Anti Virus is the strong terms to keep your system safe, although the extra specifications aren’t so good as you will find some rivals too. There are some useful tools too like great scanners and privacy cleaners.

At last, I can ask you not to expect too much over and above malware and threat protection, the core protection of Kaspersky Anti Virus is unremittingly solid.

ESET antivirus

  • Protects you against all types of malware, including viruses, ransomware, rootkits, worms and spyware.
  • Simple reliable protection. Protects your private data from ransomware and phishing with easy-to-use internet security.
  • Light footprint & won't slow you down. Enjoy the full power of your computer. Play, work and browse the internet without...
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ESET offers supreme triple protection for Mac, PC and Linux devices. This also helps the user in avoiding potential cases of passing on the threat to other users as well. The package also includes anti-spyware and anti-phishing sub-packages making the browsing safer. The threat detection rate is 100% which is the most admirable feature of any antivirus.

ESET features removable media control which keeps a gate to copy the data in and out of the mass storage devices.

The idle state scanning makes use of free CPU time and provides constant protection. The system resource usage does not have a benchmark report but definitely don’t consume significant resources during normal operation.

Trend Micro Antivirus+ Security

  • Protect your email: keep scams out of your inbox
  • Avoid web threats: defend against ransomware and other online dangers
  • Browse safely: block dangerous websites that can steal personal data
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The Trend Micro Antivirus+ Security is a product at entry level antivirus that is made for just one and a single Windows PC. Indeed, this is the only security solution you can find for the Windows platform. Therefore, another perspective about this product would be that Windows users have the full heed of the company here.

The crucial advantage of Trend Micro AS is that it not only pays attention to  windows, but also to novice system users. It is a kind of antivirus software which you just need to install once and after that you are free to forget it's there, because it works silently in the background to keep your computer safe without tweaking or configuring so much. It is a very good option for those who are less proficient in computer use.

As you might anticipate, the program’s interface is user-friendly. You moreover get a great quality antivirus platform, and whereas there's a few contradictions as to precisely how great Trend Micro is in this respect with a number of shakier appraisals from a few researches  – the software comes out towards the best of the rankings. It moreover conveys solid anti-ransomware security also, with a dedicated Folder Shield that seems to offer assistance in blocking unfamiliar ransomware attempting to compromise your PC.

Overall, the Trend Micro Antivirus+ Security is a very antivirus package. Even if it's not packed with features, you still get very attractive URL filtering and  a Pay Guard feature to secure your online banking.

Norton AntiVirus Plus

  • ONGOING PROTECTION Download instantly & install protection for your PC or Mac in minutes!
  • REAL-TIME THREAT PROTECTION Advanced security protects against existing and emerging malware threats, including ransomware and...
  • PASSWORD MANAGER Easily create, store, and manage your passwords, credit card information and other credentials online – safely...
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Norton is a leader and a leading enterprise in cyber security and protection against malware. With the detection rate of 100% and the trust of Norton expertise, a Windows user will always feel safer and more confident.

Norton is the least resource-hungry software, though a little costlier than other paid antivirus, Norton beats them all in terms of speed and agility.

Norton AntiVirus Plus is one of the best software for protecting your single Windows PC from online threats and malware. It usually covers one device. So, If you have just one system that you need to protect, you should go for it as it’s a great option for so many best grounds.

NAP provides very strong defenses at a very minimal fee for your windows. PassMark recently ranked the Norton AP as one of the best packages of antivirus, even when it comes to thumping the performance of the host PC’s.

Besides, on the internet, it also does a good job and  blocks malicious sites. In addition, you can have an intelligent firewall too that lets you know about any further potential risk to your system.

Norton Antivirus Plus is a good choice for all those who want to protect their system/PC other than more devices.   

Avira Antivirus

The Avira Antivirus is designed in Germany and nowadays this is one of the best trustworthy options. It is really best to back it up by attracting plaudits from the independent trials that reviewed it at very high rates because of its pure virus protection.

Outside that, we like how easy Avira Antivirus Pro is to install and the subsequent use. You won't feel all at sea here, wondering how to set up scans and shields. This software is a doddle to operate.

Other than that, I like how trouble-free this software is to install and the ensuing handling and use of it. You don’t need to worry about how to set up scans and shields after the installation. Avira is easy to use and handle.

Perhaps you would think a little negative after reading that it is a doddle to use, and if that is so simple to use, does it do all the scanning of the virus and the malware? Well! It is not false to say that Avira’s does not have all the features like other antivirus software.

If you are just looking for a reliable antivirus that steps up from a free program, then the Avira antivirus Pro is good to work easily.


  • Protect all your Devices PCs, Macs, smartphones and tablets
  • Secure your online banking with Banking Protection
  • Quick and easy for you to install
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The detection rate of threat is 100% and you can be sure with F-secure. Protection is poor on high threats, which is where it falls behind other antivirus software.

Resource usage is noticeable and may give mixed feelings about your Windows. The software comes in a trial version to see what the performance and resource usage will be before buying.

Last update on 2024-05-19 using Amazon Product Advertising API.