uefi certificates

About this tag
UEFI certificates are the cryptographic trust anchors embedded in PC firmware that Secure Boot uses to validate boot components before the operating system loads. Discussions on WindowsForum.com focus on the June 2026 expiration of Microsoft's original 2011 Secure Boot certificates and the migration to the 2023 certificate chain. Key themes include the operational risks for enterprise IT, BitLocker compatibility, Linux dual-boot scenarios, and the need for firmware updates. The expiration does not cause immediate boot failures but gradually weakens security posture if the trust chain is not refreshed. Administrators must plan for certificate updates via Windows Update, OEM firmware, or manual deployment to maintain boot-level protections.

  1. Secure Boot 2026 Certificate Expiration: Microsoft 2011 Keys Roll to 2023 Chain

    Beginning June 24, 2026, Microsoft’s original 2011 Secure Boot certificates start expiring across Windows PCs, servers, virtual machines, and Linux systems that rely on Microsoft-signed UEFI boot components, forcing vendors, administrators, and users to move to the newer 2023 certificate chain...
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    • Forum: Windows News

  2. Microsoft Secure Boot CA 2011 Expires in 2026: What Linux Admins Must Do

    Microsoft’s 2011 Secure Boot certificate for third-party UEFI boot components is set to expire in late June 2026, forcing Linux distributions, hardware vendors, and administrators to complete a long-planned migration to Microsoft’s newer 2023 Secure Boot certificate chain. The uncomfortable part...
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    • Forum: Windows News

  3. June 2026 Secure Boot Certificate Expiry: Enterprise Risks, BitLocker, Intune

    Microsoft’s June 2026 Secure Boot AMA focused on the enterprise fallout from expiring 2011-era Secure Boot certificates, warning that Windows fleets may keep booting after the deadline while silently losing access to future boot trust updates, revocation protections, and predictable...
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  4. Secure Boot 2011 KEK CA Expiration: June 2026 Migration Risks for Windows & Linux

    Microsoft’s 2011 Secure Boot certificate family begins expiring in June 2026, and the most consequential deadline is the Microsoft Corporation KEK CA 2011, whose replacement determines whether affected Windows devices can keep receiving future Secure Boot database and revocation updates. The...
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    • bitlocker certificate revocation enterprise it firmware trust intune intune management intune monitoring kb5094156 kek ca 2011 safe os dynamic update secure boot secure boot certificates uefi certificates windows 11 23h2 windows it admin windows security
    • Replies: 4
    • Forum: Windows News

  5. KB5096160 Setup Update Warns: Secure Boot Certificates Expire June 2026

    Microsoft released KB5096160 on May 26, 2026, as a Setup Dynamic Update for Windows 11 version 26H1 that refreshes setup-related files for feature updates and repeats Microsoft’s warning that aging Secure Boot certificates begin expiring in June 2026. That pairing is the story: a routine-looking...
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    • Forum: Windows News

  6. Secure Boot 2023 Certificate Update: June 2026 Expiration and What IT Must Do

    Microsoft’s original 2011 Secure Boot certificates for Windows PCs begin expiring in June 2026, and Microsoft is rolling out 2023 replacement certificates through Windows Update so supported UEFI systems can keep validating trusted boot software without losing future early-boot security...
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    • Forum: Windows News

  7. Secure Boot Certificate Updates: 2011 to 2023 Trust Change (June–Oct 2026)

    Microsoft is replacing the original 2011 Secure Boot certificate chain across Windows PCs and servers before certificates begin expiring in June 2026 and continue expiring into October, affecting supported Windows 10, Windows 11, and Windows Server systems that still trust those aging boot...
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    • bitlocker enterprise it firmware security it admin checklist it administration it management it security it security management kb5089592 kb5092765 kb5096160 kb5096160 update safe os dynamic update secure boot secure boot certificates setup dynamic update uefi certificates uefi firmware uefi trust chain windows 10 windows 10 and 11 windows 11 windows 11 24h2 windows 11 26h1 windows 11 security windows 11 servicing windows recovery environment windows security windows servicing windows update winre recovery winre update wsus
    • Replies: 19
    • Forum: Windows News

  8. Secure Boot 2026 Cert Expiry: OEM dbDefault Proof vs Microsoft High-Confidence

    Microsoft’s May 18 Secure Boot AMA is aimed squarely at IT administrators preparing for the June 2026 expiration of older Windows Secure Boot certificates, and one enterprise question now captures the central deployment dilemma: whether successful OEM firmware updates can stand in for...
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  9. Secure Boot Certificate Rollover June 2026: Windows 10 ESU and Boot Trust

    Microsoft is preparing Windows PCs for a Secure Boot certificate rollover beginning in late June 2026, when original 2011-era certificates start expiring and unsupported Windows 10 systems outside Extended Security Updates will not receive the replacement certificates. This is not a theatrical...
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  10. Check Windows Secure Boot Readiness for June 2026 Certificate Expiration

    Windows users can check readiness for the June 2026 Secure Boot certificate expiration by running an elevated PowerShell command that looks for the Windows UEFI CA 2023 certificate, then using Windows Update, OEM firmware updates, or Microsoft’s documented registry-triggered update path if it is...
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  11. Secure Boot Certificate Expiration in June 2026: How to Prepare

    Microsoft’s 2011-era Secure Boot certificates begin expiring in June 2026, forcing Windows PCs, servers, and some virtual machines to move to Microsoft’s newer 2023 certificate chain through Windows Update, OEM firmware updates, or managed IT deployment before boot-level protections start to...
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  12. Get-SecureBootUEFI -Decoded (KB5093574): Read PK KEK DB DBX Certificates in PowerShell

    Microsoft has quietly given Windows administrators a badly needed diagnostic upgrade for the Secure Boot certificate transition: a new -Decoded parameter for the Get-SecureBootUEFI PowerShell cmdlet. Published under KB5093574 on April 28, 2026, the change turns Secure Boot’s normally opaque...
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  13. Defender Secure Boot 2023 Readiness: Exposed Devices Before June 2026

    Microsoft’s new Secure Boot 2023 certificate assessment in Microsoft Defender arrives at a critical moment for Windows administrators: the original Secure Boot certificates issued in 2011 begin expiring in June 2026, with the transition stretching into the months that follow. The new Defender...
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  14. Secure Boot 2023 Certificate Transition: Intune Deployment, Reboots, and Monitoring

    Background Microsoft’s Secure Boot certificate transition is not a simple “flip the switch” update. It is a staged trust-chain renewal for the UEFI Secure Boot ecosystem, replacing older 2011-era certificates with 2023 certificates so Windows devices can keep receiving future boot-chain...
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    • enterprise compliance exposure management it security microsoft defender microsoft intune secure boot uefi certificates uefi firmware windows 10 esu windows update
    • Replies: 3
    • Forum: Windows News

  15. Windows 11 April Update: Check Secure Boot 2023 Certificate Status in Windows Security

    The latest Windows 11 April update is doing something quietly important: it now tells you whether your PC has received Microsoft’s newer Secure Boot 2023 certificates. That matters because the older certificates issued in 2011 begin expiring in June 2026, and Microsoft has been working to move...
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  16. Windows Security Shows Secure Boot Certificate Status (April 2026)

    Starting in April 2026, Microsoft is doing something Windows users have not seen before: surfacing Secure Boot certificate status directly inside the Windows Security app. That matters because the company’s original Secure Boot certificates, issued in 2011, are now approaching expiration in June...
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    • secure boot security updates uefi certificates windows 11 windows security windows update
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  17. Windows Security Shows Secure Boot Status: 2011 to 2023 Certs by June 2026

    Microsoft’s latest Windows security rollout marks a notable shift not because Windows Update is new, but because the company is changing how it manages one of the platform’s most sensitive trust layers: Secure Boot. Beginning in April 2026, Microsoft started surfacing certificate status in the...
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  18. Secure Boot Certificate Expiring June 2026: Windows Security Status Badges Explained

    Secure Boot is about to become a lot more visible to Windows users, and that is a good thing. Microsoft has confirmed that the Secure Boot certificates shipped with many PCs from 2011 begin expiring in June 2026, and it is now rolling out a Windows Security app status page to show whether a...
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  19. Windows 11 Secure Boot Warning: 2011 Certs Expire in 2026—Check Windows Security

    Windows 11 is getting a much more visible warning system for a problem that has been quietly building for years: Secure Boot certificates issued in 2011 are beginning to expire in 2026, and Microsoft wants users to know whether their PCs have already been updated to the newer 2023 certificates...
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  20. Microsoft Secure Boot Certificate Expiration: Windows PCs Get 2023 Trust Update

    Microsoft’s latest Secure Boot warning is less a dramatic “upgrade deadline” than a long-planned certificate transition that will touch a huge number of Windows PCs over the next several months. The reason the alert matters is real: Microsoft says its original Secure Boot certificates, first...
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    • Forum: Windows News