Windows and Linux Boot Keys Start Expiring June 24

*The cryptographic keys that secure computer boot sequences on Windows and Linux will begin to expire on June 24.*

The keys in question protect the initial startup process before the operating system loads. Their expiration means devices that rely on the current set will lose that layer of verification unless updated.

The change hits machines still using the older certificates for Secure Boot. Microsoft and Linux distributions have issued replacements, but systems that have not received or applied those updates face the risk of failed verification at startup.

No other technical specifics appear in the reporting. The article notes only that the expiration date is fixed and that the keys protect the boot sequence.

Why it matters

Users who keep systems current will see the impact limited to a one-time update step. Those running older hardware or custom configurations without recent patches may encounter boot failures that require manual intervention or rollback.

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Sources:

• Wired

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