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uefi kek db
About this tag
The uefi kek db tag covers discussions about the UEFI Key Exchange Key (KEK) database, which is a critical component of the Secure Boot chain. Content tagged with uefi kek db on WindowsForum.com focuses on Microsoft's public timeline for the upcoming Windows Secure Boot certificate expiration and the steps organizations must take to avoid boot and update disruptions. This includes guidance on updating the KEK database to ensure that devices can properly verify signed boot loaders and firmware updates. The tag is relevant for IT administrators and advanced users managing Secure Boot policies, particularly in enterprise environments where maintaining boot integrity and compliance with Microsoft's certificate updates is essential.
Microsoft released an out‑of‑band (OOB) non‑security update on August 19, 2025 — KB5066189 for Windows 11 (OS Builds 22621.5771 and 22631.5771) — to repair a regression introduced by August’s cumulative updates that can block device reset and recovery operations, and to deliver a servicing stack...