Windows 11 January 2026 update fixes NPU battery drain and tightens Secure Boot rollout
TL;DR Summary
Microsoft’s January 2026 Patch Tuesday for Windows 11 (KB5074109) is rolling out for 24H2/25H2, fixing a power issue where Neural Processing Units could stay on idle and enabling a phased rollout of new Secure Boot certificates. The update also addresses networking fixes in WSL, Azure Virtual Desktop RemoteApp issues, removes certain modem drivers, and updates WinSqlite3.dll.
- The first Windows 11 OS update for 2026 is now rolling out with big fixes Windows Central
- Patch Tuesday, January 2026 Edition Krebs on Security
- Microsoft Fixes 114 Windows Flaws in January 2026 Patch, One Actively Exploited The Hacker News
- Microsoft Patch Tuesday addresses 112 defects, including one actively exploited zero-day CyberScoop
- The January 2026 Security Update Review Zero Day Initiative
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