Microsoft released the May 2026 Patch Tuesday update for Windows 10 under the Extended Security Updates (ESU) program. The update is identified as KB5087544 and bumps the build numbers to 19045.7291 and 19044.7291.
Remote Desktop rendering fix for multi-monitor setups
The update addresses a Remote Desktop Connection security warning dialog rendering issue that affected multi-monitor setups. It also enables dynamic status reporting for Secure Boot states in the Windows Security App. Additionally, Microsoft improved the Secure Boot certificate rollout with a phased approach based on update signals. The update includes a Daylight Saving Time change for Egypt following a 2023 government order.
The update is available globally as of May 12, 2026.
This Patch Tuesday release continues Microsoft's monthly security update cadence for Windows 10, which remains supported under the ESU program for organizations that have purchased extended coverage.



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