On 2025-10-14, Microsoft released mandatory security updates KB5066835 and KB5066793 for Windows 11 versions 25H2/24H2 and 23H2. These updates introduce several enhancements and crucial security fixes across various features.
Security and Functional Enhancements
The latest Windows 11 updates address significant issues including a browser print preview bug in Chromium-based browsers and improve user experience for gamers using a gamepad. They also fix PowerShell Remoting and Windows Remote Management (WinRM) timeout errors and enhance audit event logging.
Security features benefit from a known Windows Hello face setup issue fix for USB infrared camera modules. The updates remove the ltmdm64.sys driver, impacting some fax modem hardware, and include new AI functionality with Click to Do and Summarize action tags.
User Interface and Productivity Improvements
Notably, the updates allow repositioning of on-screen hardware indicators and improvements to the Windows taskbar policies, which no longer require restarting explorer.exe. AI actions in File Explorer now allow images to be edited and documents summarized, though some AI features are not available in the EEA.
Further, the File Explorer receives visual updates and better cloud file performance, with fixes for icon/text overlap and RTL issues. Settings have been redesigned for better navigation, especially for PCs using Copilot+. Users can now pin apps in Windows Share more easily.
Additional Enhancements and Known Issues
These updates bring improved Narrator functionalities such as Braille Viewer and better Word navigation, alongside new keyboard shortcuts for en/em dashes. Despite the numerous improvements, Microsoft has noted a known issue where some apps may not play protected content due to HDCP/DRM enforcement changes.
- Microsoft released updates KB5066835/KB5066793 on 2025-10-14.
- Build numbers change to 26200.6899 for 25H2 and 226x1.6050 for 23H2.
- 23H2 will receive its final update next month before support ends.
- Fixes issues with browsers, gamepads, and remote management.
- Introduces new AI features: Click to Do and Summarize.
