Windows 11’s Secure Boot 2023 updates are failing across some PCs, exposing a wider firmware problem

Windows 11's Secure Boot 2023 updates are causing issues on some PCs due to firmware problems. The CA 2023 revocation update led to boot warnings, broken boot chains, and inconsistent guidance for users. The update exposed long-standing inconsistencies in firmware implementations and certificate handling. The article explains the importance of Secure Boot, the issues caused by the CA 2023 update, and provides solutions for users facing Secure Boot update failures. It also discusses the need for reform in the Secure Boot ecosystem and outlines steps Microsoft, OEMs, and users can take to improve the situation.