KB5099546: Overview with user sentiment and feedback

Overview

KB5099546 is a Safe OS Dynamic Update for Windows Server 2025 released on July 14, 2026. This update focuses on improvements to the Windows Recovery Environment (WinRE) and addresses compatibility issues introduced by previous security updates. The update is non-restartable and cannot be removed once applied to a Windows image.

General Purpose

• Enhances Windows Recovery Environment (WinRE) functionality and stability
• Resolves OLE Automation (oleaut32.dll) compatibility issue from June 2026 security update affecting COM method calls with BYREF parameters
• Corrects parameter ownership management for applications using IDispatch::Invoke method
• Modifies hotkey unregister and cleanup behavior to improve keyboard shortcut handling
• Replaces previously released update KB5094150

General Sentiment

Limited public discussion is available for this update, which is typical for WinRE-focused patches with narrower impact scope. The update addresses a specific compatibility regression introduced by a prior security update, suggesting Microsoft is actively managing known issues. The temporary keyboard shortcut responsiveness issue noted in the documentation appears to be a minor edge case with a straightforward workaround (application restart).

Known Issues

• In rare cases, some built-in Windows experiences may temporarily stop responding to certain keyboard shortcuts; typically resolved by restarting the affected application

Disclaimer: We take measures to ensure that AI-generated content is of the highest possible quality, but we cannot guarantee its accuracy and recommend that users do their own independent research. Generated on 2026-08-31 07:46 PM

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