windows 11 update

  1. Windows 11 KB5066835 FPS drop and NVIDIA hotfix 581.94

    GeForce users around the globe reported sudden, severe frame‑rate drops after installing Microsoft’s October 2025 cumulative update for Windows 11 (catalogued as KB5066835), prompting NVIDIA to publish an out‑of‑cycle mitigation — GeForce Hotfix Display Driver 581.94 — to restore performance for...
  2. Windows 11 KB5074109: Security fixes but notable regressions and KIR guidance

    The January 13, 2026 cumulative update for Windows 11 (KB5074109) shipped important security and platform fixes — but early deployments have produced a cluster of regressions that range from intermittent black screens and wallpaper resets to Outlook Classic hangs for POP profiles, Azure Virtual...