Are you still using Windows 10? Microsoft is automatically replacing Secure Boot certificates on older PCs before they expire, so you may want to update as soon as possible.

• Microsoft says Secure Boot certificates are being updated and Windows 10 is not fully eligible
• Affected devices will enter a “degraded security state”
• Is this another push to drive Windows 11 adoption?

Microsoft is rolling out updated Secure Boot certificates as previous certificates expire after 15 years of service, which could be bad news if you’re still running Windows 10.

The company described the update, which will affect millions of devices, as “one of the largest coordinated security maintenance efforts across the Windows ecosystem.”