Microsoft quietly deletes security blog post "Windows 11's built-in protection is enough"

Microsoft has quietly deleted a previously published long article on Windows 11 security, and no longer publicly claims that the system's built-in security features are sufficient to meet the protection needs of most users. This blog post titled "The Best Antivirus Software of 2026: The Windows Built-in Protection You Need" was originally published on the Microsoft Windows Learning Center website. It focused on the various security features integrated with Windows 11, implying that ordinary users no longer need to install third-party antivirus software. Currently, the page has been taken down and redirected to the Learning Center homepage. Microsoft has not yet given a public explanation for this change.

According to tracking by third-party testing agency AV-Comparatives and community members, this article was originally published on April 9 and will still be accessible at least on May 11. As can be seen from a snapshot of the Internet Archive website, by May 24, the article had disappeared from the official website, and the original link would then jump directly to the Microsoft Windows Learning Center homepage instead of the original content. Some observers pointed out that this adjustment occurred very quietly, and Microsoft did not issue any announcements or corrections simultaneously.

In the deleted content, Microsoft detailed a number of built-in security features, including Microsoft Defender Antivirus, Microsoft Defender SmartScreen, Smart App Control, and native ransomware protection mechanisms. The focus of the controversy is the statement in the article about "whether third-party anti-virus software is still needed": Microsoft claims that for many Windows 11 users, as long as they turn on default protection, regularly update the system and download software carefully, Defender and SmartScreen can already cover daily risks, such as malicious files, phishing websites and unsafe installers. The article also stated that whether to install additional third-party security software should depend on the user's usage scenarios and the additional features they value.

There are also situations where it is "suitable to consider additional security tools", such as the need to manage multiple devices in a unified manner, sharing devices with family members, or wanting to obtain value-added services such as identity monitoring and parental control. However, Microsoft emphasizes that with each additional security tool installed, the background activity and overall complexity of the system will increase, so it is recommended that users "choose carefully based on real needs." This overall wording has been interpreted by the outside world as Microsoft's official weakening of the importance of third-party anti-virus software and emphasis on the integrity of its own security ecosystem.

Although many Windows 11 users (including some in the industry) do rely only on the system's own protection without installing additional anti-virus software, Microsoft's use of official content to clearly convey its position that "a third party is not necessarily required" may dissatisfy long-term security vendors. For security companies that rely on the Windows platform ecosystem for survival, such statements may be seen as competitive pressure, and may also affect ordinary users' perception of the value of independent security products.