KB5099551: Overview with user sentiment and feedback

Overview

KB5099551 is a Safe OS Dynamic Update for Windows 11 version 23H2 released on July 14, 2026. This update targets the Windows Recovery Environment (WinRE) with improvements to system stability and compatibility. The update applies to all editions of Windows 11 version 23H2 and does not require a device restart after installation.

General Purpose

• Enhances the Windows Recovery Environment (WinRE) with targeted improvements
• Resolves a compatibility issue in OLE Automation (oleaut32.dll) introduced by the June 2026 security update affecting COM method calls with BYREF parameters
• Modifies hotkey unregister and cleanup behavior to improve keyboard shortcut handling
• Addresses parameter ownership management for applications using IDispatch::Invoke methods
• Replaces the previously released update KB5094156

General Sentiment

Community discussion and sentiment data for this update is minimal, which is typical for WinRE-focused updates that operate at the system recovery level. The patch addresses a specific compatibility regression from the previous month's security update, indicating Microsoft's responsiveness to identified issues. No widespread negative feedback or major compatibility concerns have been reported, suggesting the update operates as intended for most users.

Known Issues

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 2026-08-07 07:12 AM

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