The Best Free and Paid Antivirus for Windows 11 (2025 Edition)

Whether you use your computer at home or work, whether you use Windows 11 or Windows 10 OS on your computer a good antivirus program should always be installed. From online threats like malware and ransomware to phishing attempts, a reliable antivirus is your first line of defence. This article highlights some of the best antivirus for Windows 11, their features and benefits to help you choose the right protection for your system.

Without proper virus protection, you are exposing yourself to major security risks when surfing the Internet, sending e-mails or connecting to unknown hardware.

What is an antivirus program?

An antivirus program is software that protects your computer or laptop from Trojans, viruses and other malware infections on the Internet. In addition to comprehensive protection, good antivirus programs come with several additional functions for safe browsing on the Internet.

What to consider when choosing antivirus for Windows 11

If you are planning to install a free antivirus or buy one for Windows 11 check these essential criteria before choosing one.

Always install an antivirus that has the highest possible detection rate for viruses, adware trojans and keyloggers. The manufacturer regularly updates the application to protect against new virtual threats.

The antivirus should protect your device and not overly slow it down. Therefore pay attention if installing the program changes the start speed of the computer.

The interface should be clear and user-friendly so that the program can be operated as intuitively as possible.

Many antivirus providers offer good basic protection for free, but if you are looking to protect your devices sustainably over a longer period of time, a license for one or more years is worthwhile.

And more important is to check the customer support which is ideally available to you by telephone every working day.

Best Antivirus for Windows 11 PC

Windows 11 is equipped with its own antivirus, Windows security previously known as Microsoft Defender, which already keeps you safe in normal operations. Also, there are several third-party antiviruses that you can use in the free version and that protect you properly, but to have complete protection it is often necessary to pay. Here we have listed some of the best free antivirus for Windows 11.

Microsoft Defender Antivirus – Built-In Protection with No Extra Cost

Windows 11 has a built-in free antivirus tool, Windows Security formally known as Defender Antivirus to protect the device from viruses, malware and ransomware in real-time, block new threats when you download, and potentially malicious applications. With the latest Windows 11, Microsoft has improved the security of the operating system by investing time and money in the development of the Windows Defender app. Microsoft’s antivirus is installed by default on Windows 11 devices and is disabled when you install a third-party antivirus. If the antivirus is disabled, Microsoft Defender is back in action, without the need for reinstallation and protects you.

Key Features:

• Real-time threat protection against viruses, malware, and ransomware.
• Minimal system impact, ensuring smooth performance.
• Cloud-based protection and regular updates to combat emerging threats.
• Family safety options for monitoring child activities.

Microsoft Defender is a solid choice for users seeking reliable protection without additional costs.

Bitdefender Antivirus Free Edition – Lightweight, Yet Powerful

Another best free antivirus program for Windows 11 is Bitdefender Antivirus Free Edition, which offers powerful yet lightweight protection for your Windows 11 computer. Just download and run it to take advantage of your computer’s online protection from major web threats, despite its minimalist approach. Some other security measures include anti-phishing and tracking, anti-spam filters, web scan and microphone protection and more. The free version also offers automatic upgrades, for constant protection from new viruses.

Key Features:

• Real-time threat detection powered by advanced algorithms.
• Phishing protection to secure sensitive information like passwords and credit card details.
• Automatic updates to stay ahead of evolving threats.
• Low impact on system performance, making it ideal for older hardware.

To access the additional features, which include Advanced Threat Defense, multi-layered ransomware protection, anti-tracker, microphone and webcam control, anti-phishing, privacy firewall and parental control you have to pay.

McAfee Total Protection – Comprehensive Security Suite

McAfee Total Protection offers a wide range of features, from antivirus protection to identity theft prevention. This program also offers Total Protection features, from real-time online protection as you browse from viruses, malware and ransomware, anti-phishing features, password manager protection of your credentials, firewall and identity protection, as well as encrypted storage of your data.

McAfee is a good option for your Windows PC because of its impressive security features and excellent malware protection.

Key Features:

• Real-time antivirus, anti-malware, and anti-ransomware protection.
• Secure VPN for private browsing and bypassing geo-restrictions.
• Identity theft protection with monitoring and alerts.
• Multi-device compatibility, covering PCs, smartphones, and tablets.
• Password manager to store and generate secure passwords.

Avira Free Security – All-in-One Free Protection

It’s one of the fast and lightweight antivirus for Windows 11, protect your device from viruses and malware infection. It also has the ability to detect other threats, firewall protection, secure VPN connection, and performance optimization to keep your PC healthy. It’s not just an antivirus but a complete suite for enhancing your online security.

Key Features:

• Antivirus protection with real-time scanning.
• Built-in VPN for private browsing.
• System optimization tools to improve PC performance.
• Browser safety features to block malicious websites and trackers.

In the paid versions, on the other hand, important features are added regarding real-time protection from threats, password manager, blocking annoying ads and privacy protection.

Norton 360 – Premium Security for Complete Peace of Mind

Norton 360 – All-in-One Security is an antivirus that protects both your devices and your online privacy in a single solution, but its services are paid only. Antivirus keeps you safe from viruses, malware, ransomware and phishing. In addition, it is equipped with a password manager to help you manage your credentials and a cloud backup system for your most important data. Its multi-layered protection blocks new and known malware in real-time, and the advanced firewall blocks unwanted network connections.

Norton not only protects PCs from malware, but also offers a number of high-quality features that improve performance and overall security

Key Features:

• Real-time protection against malware, ransomware, and online threats.
• Secure VPN for anonymous browsing and accessing blocked content.
• Dark web monitoring for personal data protection.
• Parental control tools to monitor children’s activities.
• 50 GB to 500 GB of cloud backup for safeguarding important files.

Norton 360 also offers a VPN service, to securely access the web when connected from Wi-Fi, especially when traveling, a Firewall system that monitors your PC and blocks unauthorized traffic and a SafeCam system that alerts you if someone try to access the webcam without permission. For the little ones, it also offers a parental control service and above all a “satisfied or refunded” clause if it fails to keep your PC safe from a virus.

• For free and reliable protection, Microsoft Defender, Bitdefender Free Edition, and Avira Free Security are excellent options.
• If you need comprehensive security suites, McAfee Total Protection and Norton 360 provide premium features, including VPNs, identity theft protection, and cloud storage.