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

Microsoft will roll out new Secure Boot certificates for Windows users starting June, as the old certificates will expire.

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 ...

Microsoft is reminding users that the Secure Boot ecosystem will soon require a mandatory check-up. The Redmond-backed security protocol, part of the UEFI specification and primarily ...

Ensure your PC boots safely before Secure Boot changes.

Your PC's critical security certificates may be about to expire - how to check ...

Secure Boot helps keep your computer safe by using trusted certificates in UEFI firmware. It checks bootloaders and prevents dangerous applications from running before Windows starts. Through Secure ...

Refreshing new certificates represents one of the largest coordinated security maintenance efforts across the Windows ecosystem,' Microsoft explains.

Microsoft has announced it will deliver new Secure Boot certificates via Windows Update starting March 2026 before 2011 ...

After 15 years, the original Secure Boot certificates that keep your PC secure during boot are expiring. Here's what you need to know.

Secure Boot operates before Windows loads, blocking untrusted code from executing during startup. The trust mechanism relies on certificates stored in device firmware; Microsoft s ...