Best Free Antivirus Software For Windows 11 PC in 2024

We have tested these free antivirus software on old and new Windows OS.

If you’re looking for the best free antivirus program for Windows OS then Avast Free Antivirus and Kaspersky Security Cloud are good options.

Why do we need to download free antivirus software? It’s because these antivirus software can keep our laptops and desktops safe from malware. You can also consider Bitdefender or Avira.

These free antivirus programs offer web protection and real-time updates, which can help you stay protected against zero-day attacks. They also provide the option of cloud-based security that lets you install a new version of the software every time a new virus is released.

What is the Best Free Antivirus Software for Windows 10?

After reading through Quora, and Reddit, and using multiple antivirus programs on our Windows 10 PC we can say the Avira free antivirus is the best option if you don’t want to spend some bucks.

Its robust malware detection and elimination features will keep your computer running at peak performance.

7 Best Free Antivirus Software For Your Security

1. Avast Free Antivirus

Most leading security companies offer free security products to protect your PC from many common threats. Whether you’re running a new Windows PC or want to update your existing one, you should consider using a free antivirus program. Although Windows includes a security suite, third-party security suites can offer more protection against viruses, malware, PUPs, and adware.

Related: How to Stop DDoS Attacks During Online Gaming?

Many security software makers offer the core protection of antivirus for free but lock away the advanced features and extra tools they charge for. Avast Free Antivirus is a popular choice for those on a budget, as it has an extensive database of antivirus definitions that’s updated automatically through the internet. It’s a good option because you can install it on as many devices as you want, and it’s free to use.

While Bitdefender has retired their free antivirus for Windows, they have launched a new free version for Windows 10. While Avast is a great option, make sure you check the features of the free version before deciding on a paid one. It provides cloud management of connected devices, a reliable VPN on its app, and protection against suspicious links.

2. Kaspersky Security Cloud

If you’re looking for free antivirus software for Windows 10/11 32-bit and 64-bit PCs, consider Kaspersky Security Cloud. It performs a great job without slowing down your PC, including real-time protection. Kaspersky Security Cloud receives frequent virus definition updates. That means your PC is always protected from new threats.

Kaspersky Security Cloud’s notification center provides essential information. Its ‘notification center’ provides the user with options for enabling and disabling features. This is beneficial when encountering security threats because it allows you to resolve them quickly. You can also turn off unused functions, such as a powerful browser security feature.

Related: How to Stop Avast from Running in the Background?

The free antivirus software provided by Kaspersky can protect you from phishing and malware. It supports automatic updates and cloud scanning. Moreover, it lets you log in to Windows with a password and use the KSN network. It also comes with the Kaspersky Protection Extension, URL Advisor, and Trusted URLs. Besides, it is compatible with Windows 10, allowing you to install it on multiple devices.

3. Bitdefender

There are several benefits to installing Bitdefender free antivirus software on your Windows 10 or 11 PC. Bitdefender allows you to remotely lock, wipe, and sound an alarm on your device. Its anti-tracking features prevent web trackers from collecting data from your PC, and you can track its location on a map. It also has a file shredder, which deletes sensitive files permanently. You can adjust Bitdefender settings to suit your specific needs and lifestyle.

Norton Internet Security offers real-time protection, monitoring your active applications and reporting suspicious behavior. It also has a powerful scanning engine. This makes it among the best free antivirus software for Windows 10/11. It uses behavioral detection to monitor applications and takes immediate action if it detects any suspicious activity. Users can even set up parental controls and VPN with this software. But Bitdefender is far from perfect.

Related: Fix: Avast Scheduled Scan Not Running

4. Avira Free Antivirus

Avira is free antivirus software that can scan your computer and identify malware. It is one of the best free antivirus programs available today, trusted by millions. Its robust malware detection and elimination features will keep your computer running at peak performance.

However, you should be aware that some older versions of Windows are no longer supported. Therefore, it’s best to update to the latest version of Windows before using this free antivirus.

The interface of Avira Free Antivirus is clean and shiny, but many users prefer a minimalistic approach. It fits the definition of bloatware! Its features are plentiful, but you should not spend too much time examining them – some don’t contribute to protecting your computer.

5. Windows Security

Windows Security Download For Windows 11

Users looking for the best free antivirus software for Windows 11 do not require a third-party antivirus. Windows Security, also known as Microsoft Defender in Windows 11, is the best free antivirus program. It performs all of the functions of traditional antivirus, including real-time scanning, malware removal, reputation-based blocking of malicious apps, and more. I like Windows Security because it regularly receives security definition updates, allowing you to defend your PC against new and emerging threats.

Not to mention, because it comes with Windows 11, it does not affect the performance of your computer. Windows Security has never been a resource hog in my experience, and it runs quietly in the background. Overall, if you have upgraded to Windows 11 from Windows 10 and are looking for a suitable free antivirus program, I would advise you to look at The built-in Windows Security app is a capable tool that should suffice for most users. If you are dissatisfied with its performance, you can use the linked guide to learn how to enable or disable Windows Defender in Windows 11.

6. AVG Antivirus

AVG is one of my favorite free antivirus software for Windows 11, mainly because of its small size. Despite having six layers of security, AVG does not slow down your computer and provides all-around protection for free. AVG stops most threats, including viruses, spyware, and widespread malware. I like AVG AntiVirus because it also offers you an Email Shield, which blocks suspicious links, dangerous email attachments, and phishing attempts.

Most free antivirus programs don’t provide web protection for free. However, AVG provides this feature at no additional cost, which is fantastic. Not to mention that the antivirus receives real-time updates to protect against even zero-day attacks. To summarise, if you want a full suite of protection on Windows 11 for free, you should look into AVG’s offering.

7. Malwarebytes Anti-Malware

Malwarebytes is widely regarded as one of the computers’ best premium antivirus programs. It provides a 14-day premium trial period, after which some premium features are lost. Nevertheless, you can continue to use Malwarebytes for free after the 14-day trial period without paying anything. The only thing to remember is that real-time protection is disabled, which is a significant omission, but you still get custom scanning.

On your Windows 11 PC, you can still search for malware, rootkits, vulnerabilities, and other threats. However, with Windows Security for real-time protection and Malwarebytes for custom scanning, the antivirus duo can be a good protection suite for your Windows 11 PC.