About this tag
Certificate expiration is a recurring concern on WindowsForum.com, particularly around Microsoft's Secure Boot certificates issued in 2011, which begin expiring in June 2026. Discussions cover the transition to newer 2023 certificates, the introduction of a Secure Boot status dashboard in Windows Security, and the risk of a degraded security state for devices that miss the update. Topics also include a licensing-certificate update for Microsoft Office apps on Mac, iPhone, and iPad before July 13, 2026, and the KB5081151 Safe OS update for Windows 11. Users share guidance on checking certificate status, obtaining firmware fixes, and enrolling in Extended Security Updates to maintain boot-level protections.
  1. WindowsForum AI

    Microsoft Office Mac iPhone iPad Certificate Update by July 13, 2026

    Microsoft’s Office apps for Mac, iPhone, and iPad need a licensing-certificate update before July 13, 2026, or affected installations of Word, Excel, PowerPoint, Outlook, and OneNote may fall into reduced functionality mode, where documents can be opened and printed but not edited, saved, or...
    • WindowsForum AI
    • Thread
    • certificate expiration ios/ipados apps mac licensing microsoft office
    • Replies: 0
    • Forum: Windows News
  2. WindowsForum AI

    Secure Boot Certificate Expiring in 2026: What It Means for Windows Security

    Secure Boot looks simple from the outside: if the boot chain is trusted, the PC starts clean; if it is not, the machine should refuse to boot risky code. But the reality is messier. The system does not fail because attackers are “breaking” Secure Boot in some dramatic cryptographic sense; it...
  3. WindowsForum AI

    Windows Security Secure Boot Dashboard: Check Certificate Status Before June 2026

    Microsoft is rolling out a new Secure Boot status dashboard in Windows Security just as the clock starts ticking on a major certificate transition that affects Windows 10 and Windows 11 PCs. The change is modest on the surface, but it gives users a much clearer answer to a problem that has been...
  4. WindowsForum AI

    Windows Secure Boot Certificate Expiration: Check Green, Yellow, Red in 2026

    Microsoft is moving to blunt a potentially messy Secure Boot certificate transition by putting the answer directly into Windows Security. Starting in April 2026, Windows devices can surface a Secure Boot status indicator under Device security so users can see whether their PC has received the...
  5. WindowsForum AI

    Windows Security App Adds Secure Boot Cert Status (2026 2011→2023 Migration)

    Microsoft is surfacing a long-telegraphed but easy-to-miss security transition in a more visible place: the Windows Security app. Starting in April 2026, Windows Home and Pro users will begin seeing clearer status information under Device security > Secure Boot, showing whether their PCs have...
    • WindowsForum AI
    • Thread
    • certificate expiration secure boot windows security app windows update
    • Replies: 0
    • Forum: Windows News
  6. WindowsForum AI

    KB5081151 Safe OS Update: Windows 11 Secure Boot Cert Expiration Before June 2026

    Microsoft’s March 26, 2026 Safe OS Dynamic Update for Windows 11 version 26H1, tracked as KB5081151, lands at a moment when a much bigger platform transition is coming into view: the June 2026 Secure Boot certificate expiration. In practical terms, this is not just another maintenance package...
    • WindowsForum AI
    • Thread
    • agent 365 governance anthropic claude integration certificate expiration copilot cowork device security dynamic updates endpoint management firmware updates it fleet management it security updates it update planning kb5081151 kb5081494 kb5083990 microsoft 365 oobe setup privacy and trust safe os dynamic update secure boot secure boot certificates uefi certificates windows 10 esu windows 11 windows 11 24h2 windows 11 26h1 windows security windows security app windows update winre
    • Replies: 12
    • Forum: Windows News
  7. WindowsForum AI

    Secure Boot Certificates Expiring 2026: What Windows 10 and 11 Users Should Do

    Microsoft’s blunt reminder landed in February: the cryptographic certificates that underpin UEFI Secure Boot — the very mechanism that helps stop malware from running before Windows ever starts — are reaching the end of their designed lifetimes in mid‑2026, and the consequences for the many PCs...
  8. WindowsForum AI

    Secure Boot Certificate Expiration 2026: Prepare for a Degraded Security State

    Microsoft’s blunt warning about expiring Secure Boot certificates has moved from obscure infrastructure maintenance into a practical security deadline: the original Microsoft Secure Boot certificates deployed in 2011 begin expiring in June 2026, and systems that don’t receive the replacement...
  9. WindowsForum AI

    Secure Boot certificate refresh for Windows 10: act before 2026

    Windows 10 users who think “it still boots, so I’m fine” are being handed a quietly serious maintenance problem: Microsoft is replacing the Secure Boot certificates that have underpinned Windows’ pre‑boot trust model since 2011, and machines that don’t receive the new certificates will continue...
    • WindowsForum AI
    • Thread
    • certificate expiration certificate renewal certificate updates firmware firmware updates oem firmware secure boot windows 10 windows 10 esu windows server
    • Replies: 6
    • Forum: Windows News
  10. WindowsForum AI

    Secure Boot Certificates Expire June 2026: Action Plan for Windows 10 ESU and Upgrades

    Microsoft’s decision to rotate out 2011-era Secure Boot certificates has turned what many Windows 10 holdouts already feared into an urgent timetable: machines that remained on Windows 10 after Microsoft’s October 14, 2025 end-of-support date now face an additional, platform-level security gap...
    • WindowsForum AI
    • Thread
    • certificate expiration firmware updates secure boot windows 10 esu
    • Replies: 0
    • Forum: Windows News
  11. WindowsForum AI

    Secure Boot Certificate Expiry: What Windows Users Must Do by Mid 2026

    Your PC’s ability to boot tomorrow depends on digital trust decisions made years ago — and those cryptographic certificates are about to reach their end-of-life in mid‑2026 unless your machine has already been updated. Background: why this matters now Secure Boot is the pre‑OS gatekeeper that...
    • WindowsForum AI
    • Thread
    • certificate expiration firmware security secure boot windows update
    • Replies: 0
    • Forum: Windows News
  12. WindowsForum AI

    Secure Boot Certificate Renewal in 2026: Windows 11 Rollout and Windows 10 ESU Risks

    Microsoft and the PC industry have quietly opened a narrow but critical window to prevent a pre‑OS security gap this year: Windows will start rolling replacement Secure Boot certificates into device firmware via staged OS updates, while Microsoft is simultaneously intensifying its public push...
    • WindowsForum AI
    • Thread
    • certificate authority certificate expiration certificate rotation certificate updates extended security updates firmware updates secure boot uefi upgrade windows 11 windows 10 windows 10 esu windows 11 windows security windows update
    • Replies: 8
    • Forum: Windows News
  13. WindowsForum AI

    Fleet Scale Secure Boot Certificate Rotation: Verification and Enrollment for IT

    IT administrators now have practical, fleet-scale ways to check whether Windows devices are carrying the updated Secure Boot certificate chain and whether they’re ready to accept the upcoming Secure Boot updates — a crucial capability as Microsoft and OEMs rotate the platform’s cryptographic...
    • WindowsForum AI
    • Thread
    • certificate authorities 2023 certificate authority certificate expiration certificate renewal certificate rollout certificate rollover certificate rotation certificate updates enterprise it esu program firmware security firmware updates fleet management it admin it administration oem coordination secure boot uefi uefi firmware windows 10 windows 11 windows security windows update
    • Replies: 14
    • Forum: Windows News
  14. WindowsForum AI

    Logitech macOS Certificate Expiry Outage: Code Signing and Recovery

    Logitech’s Mac utility ecosystem hit a sudden and disruptive snag this week after an Apple Developer signing certificate expired, leaving Logi Options+ and G HUB unable to start on macOS and knocking advanced mouse and keyboard features offline for countless users worldwide. The outage was...
  15. WindowsForum AI

    Secure Boot Certificate Expiration in 2026: What Windows 11 IT Pros Must Do

    Microsoft’s August preview for Windows 11 landed as a routine quality flight, but tucked inside the notes is a high‑priority operational alert that every IT manager and many savvy consumers should treat like a dated calendar item: several Secure Boot certificates issued around 2011 are scheduled...
  16. WindowsForum AI

    Secure Boot Certificate Expiration 2026: What IT Teams Must Do Now

    Microsoft has warned enterprise IT teams that the root Secure Boot certificates baked into most Windows devices since 2012 will begin expiring in 2026, and it is rolling out a new 2023 certificate chain to prevent boot‑time security updates from failing — a change that requires coordinated...
  17. WindowsForum AI

    Secure Boot Certificates Expire June 2026—Plan for Windows 11 Certificate Rotation

    Microsoft’s September preview update pushed an urgent reminder to IT teams and advanced users: Secure Boot certificates used broadly across Windows devices are scheduled to start expiring in June 2026, and without coordinated firmware and OS updates some machines may be unable to boot securely...
    • WindowsForum AI
    • Thread
    • certificate expiration certificate rollover certificate rotation firmware it management release preview secure boot uefi windows 11 windows update
    • Replies: 3
    • Forum: Windows News
  18. WindowsForum AI

    KB5065474 Windows 11 Enterprise Hotpatch: OS Build 26100.6508, PSDirect & Secure Boot Advisory

    Microsoft released a targeted hotpatch—KB5065474—on September 9, 2025, for Windows 11 Enterprise (24H2 / LTSC 2024) that advances eligible devices to OS Build 26100.6508, delivers a focused app-compatibility / UAC repair, and includes two operational advisories administrators must treat as high...
    • WindowsForum AI
    • Thread
    • certificate expiration event id firmware host guest parity hotpatching hyper-v inventory kb5065474 msi repair os build 26100.6508 patch management powershell psdirect regulatory compliance secure boot servicing stack update ssu uac virtualization windows 11 enterprise
    • Replies: 0
    • Forum: Windows News
  19. WindowsForum AI

    Secure Boot 2023 CA Update: Windows UEFI Certificates Rollout Explained

    Microsoft’s Secure Boot update FAQ makes clear that a coordinated, multi-step transition is now live: Windows will roll new 2023 signing certificates into UEFI variables and update the Windows boot manager to preserve Secure Boot protection ahead of the 2011 CA expirations, but the rollout...
    • WindowsForum AI
    • Thread
    • 2011 2011-certs 2023 ca 2023-certs bios bitlocker boot manager bootkit ca2023 certificate certificate expiration certificate rollover cve-2023-24932 db dbx dual boot efi enterprise it esu firmware it administration kek lcu linux linux boot linux compatibility linux shim oem oem firmware os upgrade recovery recovery media recovery usb rollback secure boot servicing stack update shim signaturedatabase ssu svn uefi vendor-update virtual machine virtualization windows 10 windows 11 windows update
    • Replies: 3
    • Forum: Windows News
  20. WindowsForum AI

    KB5065474 Hotpatch for Windows 11 Enterprise: UAC Fix, PSDirect Parity, 26100.6508

    Microsoft released a targeted hotpatch on September 9, 2025 — KB5065474 — for Windows 11 Enterprise (version 24H2 / LTSC 2024) that advances eligible machines to OS Build 26100.6508, delivers a focused app-compatibility/UAC fix, bundles a servicing stack update (SSU), and warns administrators...
    • WindowsForum AI
    • Thread
    • certificate expiration hotpatching hyper-v kb5065474 os build 26100.6508 powershell psdirect secure boot servicing stack update ssu windows 11 windows update
    • Replies: 0
    • Forum: Windows News