Windows has evolved significantly since its early days, transforming from a target for malware and viruses into a platform with robust built-in protection. The rise of the antivirus industry, featuring names like McAfee, AVG, and Norton, was once essential for safeguarding users. However, as technology has advanced, the necessity of these third-party solutions has come into question.
Windows’ built-in antivirus protection is now pretty good
Microsoft Defender Antivirus has undergone a remarkable transformation over the past decade. In 2015, it struggled with a mere 0.5 out of six in AV-Test’s evaluations. Fast forward to 2026, and Defender has achieved a perfect score of six, successfully detecting 100% of threats in both real-world and widespread malware tests. This performance surpasses industry averages, showcasing Defender’s reliability in protecting users from potential threats.
Integrated into the Windows Security suite in Windows 11, Microsoft Defender operates seamlessly in the background. It automatically scans files and applications as they are accessed, ensuring that users are shielded from threats without needing to remember to update malware definitions. For those who prefer a more hands-on approach, users can initiate on-demand scans by right-clicking files and selecting Scan with Microsoft Defender. Additional options for threat detection are available through the Virus & threat protection > Quick scan section in the Windows Security app.
Paid security suites can prove useful in some cases
As we navigate the digital landscape of 2026, the threats we face have evolved beyond traditional viruses. Phishing schemes, scam emails, and deceptive pop-ups are now prevalent, seeking to exploit users’ vulnerabilities. This shift has led to the emergence of modern antivirus solutions that focus on providing additional layers of security.
Many third-party antivirus providers offer free tiers for basic protection, but their premium subscriptions bundle various features such as anti-scam tools, VPNs, and password managers. For instance, Malwarebytes highlights its advanced ransomware protection in its paid offerings, while Norton’s 360 Deluxe plan includes a VPN, parental controls, and cloud backup storage. These comprehensive packages often cater to families, extending their coverage across multiple devices.
While these suites can be beneficial, particularly for users who may struggle to identify online threats, the question remains: how many of the included features will you actually utilize? For those who prefer a more straightforward approach, Malwarebytes’ free version serves as an effective secondary scanner, complementing the continuous protection offered by Microsoft Defender. If additional tools like VPNs or password managers are desired, dedicated alternatives often provide more reliable performance.
Moreover, many web browsers, including Microsoft Edge, come equipped with built-in protections such as SmartScreen, which actively checks websites for phishing and malware reports. This serves as a reminder that security software is just one component of a comprehensive online safety strategy.
Don’t keep paying for antivirus software out of habit
For long-time PC users, subscribing to antivirus software may feel like a necessary ritual. However, with the advancements in Windows’ built-in protection, it’s time to reassess this habit. Consider how many features of your current security suite you genuinely use. Often, browser add-ons and maintenance utilities can clutter your system without providing substantial benefits.
Free versions of third-party antivirus tools can also become intrusive, inundating users with pop-ups and upgrade prompts. Unlike Microsoft, which prioritizes the security of Windows as a default, many antivirus companies rely on converting free users into paying subscribers. This can lead to a frustrating user experience, especially since installing a third-party antivirus often disables Defender to avoid conflicts.
Performance is another critical factor to consider. While third-party antivirus solutions may not drastically slow down your PC, tests have shown that running full scans can impact game performance significantly. For example, Malwarebytes Premium reduced frame rates in Cyberpunk 2077 during scans, while Bitdefender had a lesser effect.
Ultimately, while there are valid reasons to consider third-party antivirus solutions, for the majority of users, relying on Windows’ built-in protection is likely sufficient. Paid alternatives should only be pursued if their additional features align with your specific needs.