Microsoft Windows 11 25H2 Update Version OS Builds 26200.7623 and 26100.7623

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Update Summary

KB5074109 updates Windows 11 version 25H2 and 24H2 to OS Builds 26200.7623 and 26100.7623 with security fixes, quality improvements, and non-security changes from the December preview release. It also adds Secure Boot certificate targeting, changes WDS hands-free deployment behavior, and includes a credential autofill hardening change. Reference IDs: KB5071142.

Update Details

Security

  • Introduces a security hardening change that restricts certain applications from autofilling credentials during remote support sessions or automated authentication workflows.
  • Updates WinSqlite3.dll after some security software had flagged it as vulnerable.
  • Adds Secure Boot certificate targeting data to help devices receive new certificates in a phased and safer rollout.

Bug Fixes

  • Fixes WSL mirrored networking failures that could cause No route to host errors and block VPN access to corporate resources.
  • Fixes RemoteApp connection failures in Azure Virtual Desktop environments.
  • Fixes an issue where devices with an NPU might stay powered on when idle.
  • Removes legacy modem drivers agrsm64.sys, agrsm.sys, smserl64.sys, and smserial.sys, which can break dependent modem hardware.

New Features

  • Redesigned Start menu continues rolling out to more devices.
  • Windows Deployment Services stops supporting hands-free deployment functionality by default.

Known Issues

  • Password icon might be missing or invisible in lock screen sign-in options on some enterprise or managed devices.
  • Connection and authentication failures in Azure Virtual Desktop and Windows 365 may occur after installing this update.
  • Some apps may become unresponsive when opening or saving files to cloud-based storage such as OneDrive or Dropbox.

Hints

  • Windows quality updates now include a subset of high-confidence device targeting data for phased Secure Boot certificate deployment.
  • Windows Update titles now use a simplified standardized format that keeps the date, KB number, and build or version.
  • Windows updates do not include Microsoft Store app updates.
  • The servicing stack update included is KB5071142 for OS build 26100.7295.
Product Information

Vendor: Microsoft

Product: Windows 11

Version: OS Builds 26200.7623 and 26100.7623

Release date: Jan 13, 2026

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