KB5075941: Overview with user sentiment and feedback

Overview

This cumulative update for Windows 11, version 23H2 (KB5075941), includes the latest security fixes and improvements, along with non-security updates from last month's optional preview release. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different types of Windows software updates.

General Purpose

This security update contains fixes and quality improvements from KB5073455 (released January 13, 2026), KB5077797 (released January17, 2026), and KB5078132 (released January,24, 2026). The update addresses security issues for your Windows operating system and includes the following key changes:[Secure Boot] This release will execute updates in the Boot Manager on devices that already have the Windows UEFI CA 2023 certificate in their Secure Boot Signature Database (DB). It replaces the 2011 signed bootmgfw.efi with the 2023 signed bootmgfw.efi. Users should be aware of the consequences of resetting the DB or turning Secure Boot on or off, as this can cause a "Secure Boot violation" issue.[Display & Graphics] This update addresses an issue that caused the Desktop Window Manager (DWM) process to re-start unexpectedly.[File Explorer] This update addresses an issue where folder renaming with desktop.ini files in File Explorer isn't working correctly. The LocalizedResourceName setting is ignored, so custom folder names don't appear.[Fonts & Display] This update updates the Chinese fonts to support the GB18030-2022A standard for character coverage and display.[Graphics] This update addresses an issue where certain GPU configurations might have recently experienced a system error related to dxgmms2.sys, resulting in the KERNEL_SECURITY_CHECK_FAILURE error.[OS Security] This update addresses an issue that affected Microsoft Defender SmartScreen Application Reputation (AppRep) events from being logged, interrupting event tracking used for advanced threat investigations.

General Sentiment

Overall, this update appears to address a variety of security vulnerabilities and quality issues across the Windows 11 operating system. The changes to Secure Boot management, graphics, File Explorer, and security logging should provide improvements for users. However, the potential for Secure Boot-related issues is worth noting, and users may need to take precautions when applying the update. The lack of any known issues reported is also a positive sign, though unexpected problems could still arise. As with any Windows update, it's recommended to thoroughly test the update in a non-production environment before deploying it widely.

Known Issues

Microsoft is not currently aware of any issues with this update.

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 2026-03-11 01:18 AM

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