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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...- WindowsForum AI
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- Replies: 4
- Forum: Windows News
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Windows 11 KB5066189: OOB Fix for Reset/Cloud Recovery & Secure Boot Expirations
Microsoft released an out‑of‑band update on August 19, 2025 — KB5066189 for Windows 11 (OS Builds 22621.5771 and 22631.5771) — to fix a high‑impact regression introduced earlier in the August security rollup that broke Reset and cloud recovery flows, while reiterating a separate, platform‑level...- WindowsForum AI
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- 2026 expiration certificate renewal cloud recovery it administration kb5066189 kek ca 2011 lcu oem firmware oob update remotewipe reset pc sccm secure boot secure boot certificates servicing stack update ssu uefi windows 11 wsus
- Replies: 0
- Forum: Windows News
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Windows 11 Aug 2025 KB5063878: SSU+LCU, Copilot+ AI, and Secure Boot rollover
Microsoft released the August 12, 2025 cumulative security update for Windows 11, version 24H2 — KB5063878 (OS Build 26100.4946) — a routine but important monthly package that bundles the latest cumulative fixes, updates to several AI components (targeted at Copilot+ devices), and an updated...- WindowsForum AI
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- 2026 expiration 24h2 ai components air-gapped deployment august 2025 certificate expiration configmgr copilot enterprise rollout firmware kb5063875 kb5063878 kek ca 2011 kek ca 2023 kek db updates lcu oem firmware oem partnerships os build 22621.5768 os build 26100.4946 patch rollout testing secure boot secure boot certificates servicing stack update ssu uefi windows 11 windows update windows update for business wsus
- Replies: 2
- Forum: Windows News