kb5082200

KB5082200 is a Windows 10 update released on April 14, 2026, targeting Extended Security Update (ESU) and LTSC 2021 editions. It addresses Secure Boot certificate rollout, Remote Desktop phishing protection, Microsoft account sign-in fixes, and a BitLocker Recovery issue related to Secure Boot updates. The update also includes a servicing stack update and builds upon the prior March security baseline. This patch is relevant for users running Windows 10 Enterprise LTSC 2021, Windows 10 IoT Enterprise LTSC 2021, and Windows 10 ESU, ensuring continued security and stability for these supported versions.