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secure boot ca 2023

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The secure boot ca 2023 tag covers Microsoft's staged rollout of updated Secure Boot certificate authority (CA) certificates, specifically the CA 2023 certificate, via Windows 11 cumulative updates. This process, which began ahead of a June 2026 expiry window, involves seeding new certificates and swapping boot manager binaries on compatible devices. The updates (e.g., KB5077179, KB5077181, KB5075941) are part of a cross-industry effort to refresh the Secure Boot certificate chain. Devices that miss the transition will still boot but may progressively lose functionality. Discussions focus on the technical details, timeline, and implications of this certificate update for Windows 11 users.
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    February 2026 Windows 11 Updates Expand Secure Boot CA 2023 Ahead of June Expiry

    Microsoft’s February 10, 2026 cumulative updates for Windows 11 quietly carried more than routine security fixes — they continued a staged rollout that will refresh the operating system’s Secure Boot certificate chain ahead of a looming expiry window that begins in June 2026. What looks like a...
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    • certificate updates enterprise it it administration midi overhaul patch tuesday patch tuesday 2026 secure boot secure boot ca 2023 secure boot update servicing stack update windows 11 windows 11 updates windows security
    • Replies: 3
    • Forum: Windows News
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