Microsoft Windows 11 23H2 Update Version OS Build 22631.7376

KB5099414 for Windows 11 version 23H2 updates OS Build 22631.7376 with July 2026 security fixes, quality improvements from KB5093998, and new Secure Boot and RDP security changes. It also includes the servicing stack update KB5104023. Reference IDs: KB5027397.

• Addresses security issues in the Windows operating system.
• Adds additional high-confidence device targeting data to expand automatic delivery of new Secure Boot certificates.
• Introduces security hardening that enforces TDI transport registration requirements; apps using sockets over unregistered third-party TDI transports might stop working.
• Upgrades the curl tool in Windows to version 8.21.0 with security improvements.
• Adds SHA-2 certificate thumbprint support for trusted RDP publishers and recommends migrating to SHA-256 or stronger to reduce phishing risk.

• Fixes an issue where third-party apps using OLE Automation with Microsoft Office might fail to launch Office or open documents after KB5093998.
• Fixes a File Explorer issue where the OneDrive shortcut stops working when File Explorer runs in administrative mode after KB5093998.
• Fixes a Recycle Bin issue where the confirmation dialog might show an internal file name instead of the original file name when permanently deleting a file.
• Updates Country and Operator Settings Asset (COSA) profiles for certain mobile operators.
• Changes input hotkey unregister and cleanup behavior to address rare shortcut responsiveness issues in built-in Windows experiences.

• Adds SHA-2 certificate thumbprint support for trusted RDP publishers.
• Provides new guidance for managing RDP file security through Group Policy.

• Use EKB KB5027397 to update to Windows 11, version 23H2.
• If built-in Windows experiences temporarily stop responding to keyboard shortcuts, restarting the affected app may resolve the issue.
• IT administrators should migrate RDP trusted publisher thumbprints to SHA-256 or stronger as soon as possible.
• Windows 11 version 23H2 Enterprise and Education reach end of updates on November 10, 2026.
• Secure Boot certificates for most Windows devices begin expiring in June 2026; updated certificates continue to be delivered through Windows Update.

Product Information

Vendor: Microsoft

Product: Windows 11

Product type: Software

Application category: Utilities

Platform: Windows

Variant: 23H2

Version: OS Build 22631.7376

Vendor release date: Jul 14, 2026

Original release notes: View on vendor site

Published on updatealert.io: Jul 16, 2026

Description: Client operating system for modern desktop and enterprise environments.