Are you still using Windows 10? Microsoft automatically replaces Secure Boot certificates on older PCs before they expire, so you may want to update ASAP

• Microsoft says that Secure Boot certificates are being updated and Windows 10 is not fully eligible
• Affected devices will go into a “Degraded Security Mode”
• Is this another push to drive Windows 11 adoption?

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

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