From PC World: Microsoft just pushed the Secure Boot 2023 certificate update to all eligible Windows 11 and Windows 10 computers, just in time given that old certificates were due to expire today. It’s a good thing, too, since your PC could face real problems without updated certificates.
According to Windows Latest, Microsoft gave an official statement about the just-in-time rollout, saying the following:
With this update, Windows quality updates include additional high confidence device targeting data, increasing coverage of devices eligible to automatically receive new Secure Boot certificates. Devices receive the new certificates only after demonstrating sufficient successful update signals, maintaining a controlled and phased rollout.
If your Windows PC received the June 2026 Patch Tuesday update, there’s a good chance the new Secure Boot 2023 certificates have also been installed without you having to do anything.
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