Cumulative Update for Windows 10 Version 1709 for x64 based Systems (KB4058258)

Cumulative Update for Windows 10 Version 1709 for x64-based Systems (KB4058258) is available to download in Windows Update. This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include: Addresses issue where users of Microsoft and Azure Active Directory accounts may see the password prompt repeatedly. Addresses a performance degradation observed in applications making heavy use of the .NET System.Diagnostics.StackTrace class. Addresses a compatibility issue where colors are distorted on some displays and televisions that have 10-bit or higher color depth. Addresses a condition where a second monitor that is connected to legacy AMD display adapters flashes after waking from sleep. Addresses issue that causes delays when switching keyboard languages using Alt+Shift. Addresses compatibility issues when rendering certain closed captions or subtitle formats during video playback. Addresses issue where the Microsoft Edge Allow Extension Group Policy for the disabled state was not working. Provides additional protections for 32-bit (x86) versions of Windows 10, version 1709. Resolves the issue reported by some customers on a small subset of older AMD processors where the processor entered an unbootable state after installing January 3, 2018—KB4056892 (OS Build 16299.192).