The first Windows 11 OS update for 2026 is now rolling out with important fixes - including one that impacts battery life on PCs with an NPU

The first Windows 11 OS update for 2026 is now rolling out with important fixes - including one that impacts battery life on PCs with an NPU

Windows Central technology

Key Points:

  • Microsoft's January 2026 Patch Tuesday update KB5074109 is now available for Windows 11 versions 24H2 and 25H2, focusing on important fixes rather than new features.
  • A key fix addresses an issue where Neural Processing Units (NPUs) remained powered on during idle states, improving battery life on affected PCs.
  • The update introduces a new mechanism to identify devices eligible for automatic Secure Boot certificate updates, ensuring phased and safe deployment based on successful update signals.
  • Additional fixes include resolving mirrored networking failures in Windows Subsystem for Linux (WSL), RemoteApp connection issues in Azure Virtual Desktop, and updating the WinSqlite3.dll component to prevent false vulnerability detections.
  • Windows Deployment Services (