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Ensure your PC boots safely before Secure Boot changes.

In June 2025, Microsoft announced that, in June 2026, it would begin deprecating Secure Boot certificates of Windows systems ...

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Microsoft's Secure Boot certificates expire in June, and unless you've enrolled in its 'Extended Security Updates' program, the OS will fall into a 'degraded security state', Microsoft says.

Microsoft has begun rolling out updated Secure Boot certificates through monthly Windows updates to replace the original 2011 certificates that will expire in late June 2026.

Secure Boot has relied on the same security certificates to verify bootloaders since 2011, during the development cycle for Windows 8. But those original certificates are set to expire in June and ...

Another crucial Windows expiration date is right around the corner for more than a billion PCs. Here's what you need to do now.

Secure Boot protects your PC against bootkit malware. The Windows update refreshes expiring Secure Boot certificates. To install, head to Settings and select Windows Update. I typically advise Windows ...