Get ye to Windows Update, because there's a good chance you've got new Secure Boot certificates to install. Microsoft just ...

Important security certificates for Windows 11 will soon expire for many users. In some cases, you will need to take action ...

Microsoft reminds everyone that the initial wave of Secure Boot certificates, dropped in 2011, are due to expire.

One of those was UEFI Secure Boot, a mechanism for verifying PC bootloaders to ensure that unverified software can’t be loaded at startup. Secure Boot was enabled but technically optional for Windows ...

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 ...

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 ...

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

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.

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

Microsoft ended software support for Windows 10 in October 2025, bringing an end to the operating system launched in 2015.

Don't Throw Away Your Laptop: How to Install Windows 11 On Unsupported Hardware ...