Microsoft released KB5063842 (https://support.microsoft.com/en-us/topic/august-26-2025-kb5063842-os-build-19045-6282-preview-0ee815c6-a742-4cae-b669-6978e0bfd425) for Windows 10 version 22H2 optional non-security release preview (Windows monthly updates explained (https://techcommunity.microsoft.com/t5/windows-it-pro-blog/windows-monthly-updates-explained/ba-p/3773544)).
Note: The September non-security preview update will be the final non-security preview update for Windows 10 2262.
Key Issues Addressed- [Common Controls] Fixed: An issue that affects how certain supplementary characters appear in Windows textboxes.
- [Input and Composition] Fixed: An issue with the Chinese Simplified Input Method Editor (IME). Some extended characters were shown as empty boxes.
- [Licensing] New! This update adds a new feature that allows customers using the Windows 10 keyless Commercial ESU solution—alongside a Windows 365 subscription—to block outbound network traffic. This enhancement supports compliance with Zero Exhaust policies.
- [Mobile Operator Profiles] Updated: Country and Operator Settings Asset (COSA) profiles.
- [Multimedia] Fixed: An issue where mf.dll failed to enumerate redirected web camera devices on Remote Desktop Services (RDS) environments.
- [Windows Hello] Fixed: An issue in which Narrator reads the incorrect name for the "Enhance Facial Recognition Protection" check box under the Facial Recognition setting.
- [Search pane] Fixed: An issue that might cause the Windows Search pane to not show the preview pane correctly.
- [Family Safety] Fixed: An issue where the "Ask to Use" approval flow was not being triggered for blocked apps. With this fix, the approval flow now appears as expected when a blocked app is accessed.
- [Portable Devices] Fixed: An issue where the Removeable Storage Access policy may not work properly.
- [Windows Backup for Organizations] New! Windows Backup for Organizations (http://'https://aka.ms/WindowsBackupforOrganizations') is now generally available! Experience seamless device transitions with enterprise-grade backup and restore. Whether you're refreshing your organization's devices, upgrading to Windows 11, or deploying AI-powered PCs, this solution helps sustain productivity with minimal disruption, ensuring business continuity and organizational resilience.
If you installed earlier updates, only the new updates contained in this package will be downloaded and installed on your device.
Update: To get the update, go to Settings > Update & Security > Windows Update. The link to download and install the update can be found in the Optional updates available area.
Windows 10 update history (https://support.microsoft.com/en-us/topic/windows-10-update-history-8127c2c6-6edf-4fdf-8b9f-0f7be1ef3562)