Windows PCs without June 2027 update certificates will stop receiving security patches

On June 19, 2027, Microsoft will change how Windows PCs get updates. It's a very direct change that can affect how secure your computer is. Without the new update certificates, your PC will no longer get updates from Windows Update.

Microsoft enforces new certificate requirements for Windows 10 and 11 builds

This will put it in a very vulnerable position from a security standpoint. What's even worse is that these users won't be able to receive vital security updates at all, with no warning.

This new update policy is very specific to certain versions of Windows 11 and Windows 10. It means you'll need to know the exact version of your system before June 19, 2027. For example, Windows 11 25H2 and newer (such as 26H2) are not subject to this and will not need to do anything. But for Windows 11 in general, if it's an older version, then you'll need to update to specific versions to make sure you can still receive updates.

For instance, Windows 11 24H2 will need to be at build 26100.6584 or later to receive the new certificates. Windows 11 23H2 requires build 22631.7376 (July 2026 update, only Enterprise/Education). For Windows 10 PCs that aren't using Extended Security Updates, they haven't received an update since October 2025 and will not be able to receive updates in June 2027.

Luckily, for Windows 10 PCs, you can still enroll in the Extended Security Updates program until October 12, 2027, to make sure you stay secure. It'll cost $30 (plus tax) in the US or you can spend 1000 Microsoft Rewards points to redeem it. If you sync your PC settings, then it'll be free. So if you can't upgrade your hardware, at least there's a way out.

We wrote about the last Windows update and noticed some similar stable themes. But this certificate rotation is a separate new policy. So it's something you should probably look up your build number for now to make sure you have a supported version.

Otherwise, it's a hard deadline. If you miss it, then you won't get the updates with the automatic security features anymore.

Source: Windows, NotebookCheck