Microsoft Issues Emergency Fix for Windows 11 Patch That Broke AMD GPUs and More
Microsoft has released an out-of-band update to address multiple bugs introduced by its September 2026 Windows 11 patch, including crashes on AMD Radeon systems, Explorer hang-ups, and broken third-party integrations. The original update also added long-requested features like a movable taskbar and revamped search. The emergency patch targets audio issues, Remote Desktop instability, and other regressions.
The September 2026 Windows 11 25H2 update introduced several long-awaited interface changes, including a movable taskbar, configurable Start menu layouts, and a search function that can be restricted to local results. Explorer also gained clearer file-size indicators. However, these additions came alongside serious regressions affecting AMD Radeon GPU stability, with driver reinstalls failing to resolve crashes across most contemporary graphics cards.
The emergency out-of-band patch specifically targets audio device misconfiguration, Remote Desktop Services connection failures, and Explorer black-screen issues after login. File History backup's failure to detect external drives is also addressed. Notably, the update broke Claude Cowork by disrupting HC-managed Linux VMs using Plan9 shared folders. HP and Lenovo owners face separate concerns, including potential BIOS corruption on HP systems and power-management-related black screens on Lenovo machines.
This incident could erode user confidence in Windows update reliability, particularly among enterprises and homelab operators who depend on stable Remote Desktop and backup functionality. AMD GPU owners may face productivity losses while awaiting fixes, and the HP BIOS corruption reports raise concerns about hardware-level damage from software updates. The pattern of feature-rich patches introducing regressions could push some organizations toward delaying updates, potentially increasing security exposure given the nearly 1,000 vulnerabilities addressed.