‘Defender covers everyday risk without requiring additional software’: Microsoft says its antivirus is all many Windows 11 users need — but is that right?
- Microsoft has a new post on the Windows Learning Center
- It asks: “Do you still need third‑party antivirus in 2026?”
- The conclusion is that Windows 11’s built-in protection should be fine for most people, but situationally, you may want to consider an alternative
Ever wondered whether Microsoft Defender can protect your PC from whatever malware might be lurking out there? You’re not alone, and Microsoft has just addressed this issue.
Windows Latest noticed that Microsoft has a new post on its Windows Learning Center advising people on the subject of the best antivirus software, and whether the default option in Windows 11 is good enough.
The key question in respect of the latter point comes later in the article, where Microsoft asks: “Do you still need third‑party antivirus in 2026?”
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The answer is clear enough: “For many Windows 11 users, Microsoft Defender Antivirus covers everyday risk without requiring additional software. The choice to add third‑party antivirus depends on how you use your PC and which features you value.”
Microsoft elaborates that Defender antivirus is “usually sufficient when Windows 11 runs with default protections enabled, updates are installed regularly, and software downloads are deliberate”.
The company also notes that SmartScreen plays a part in protecting the average Windows 11 PC, too, and that the coverage given by this feature plus Defender should be fine, bearing in mind the noted caveats.
Situationally, where you might want to consider installing a third-party antivirus or security suite is if you share devices with other family members who may not be as careful as you (or indeed you might want to manage multiple family devices across one dashboard).
Microsoft further notes that you’ll need an independent solution if you “want services like identity monitoring or parental controls”, which aren’t provided by Defender.
Analysis: I don’t think Microsoft is wrong here
What Microsoft is essentially saying is that for most people, certainly individual PC owners, Windows 11’s built-in antivirus should be just fine. It’s mainly family scenarios, where you may want the ability to control internet access for your children, in which you’ll need to look for something more extensive in the way of a security suite.
Is Microsoft correct to assert that Defender works well for everyday users? I would say that yes, it is. There was a time in the past where Defender wasn’t very highly thought of, but Microsoft has come a long way since then, and relying on Windows 11’s default antivirus is not a risky proposition these days.
It covers the basics and keeps you safe from malware, although as Microsoft notes, there are other pieces of the puzzle when it comes to ensuring your PC isn’t compromised. That includes applying regular updates (for Windows 11 and other apps), and a sensible dose of caution regarding what you download onto your system (don’t underestimate the importance of the latter).
No, Microsoft Defender doesn’t offer the best antivirus protection going, but it is good enough. However, it’s just the core basics, and other security solutions offer a lot more in the way of features, some of which may be valuable to you.
The other benefit of Defender is that because it’s already there in Windows 11, it fits neatly away in the background — updating itself as and when — and the app doesn’t require a separate installation (and consumes little in the way of resources).
That said, even if you don’t want to pay for an antivirus, there are still relatively lightweight free antivirus apps from major vendors that perform slightly better than Microsoft Defender in terms of malware protection (based on independent tests). The days when Defender was appreciably lagging behind those security top dogs, though, are well and truly in the rearview mirror.
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