Applies To
Windows 10 Home and Pro, version 22H2 Windows 10 Enterprise Multi-Session, version 22H2 Windows 10 Enterprise and Education, version 22H2 Windows 10 IoT Enterprise, version 22H2

Release Date:

8/26/2025

Version:

OS Build 19045.6282

Windows Secure Boot certificate expiration 

Important: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. This might affect the ability of certain personal and business devices to boot securely if not updated in time. To avoid disruption, we recommend reviewing the guidance and taking action to update certificates in advance. For details and preparation steps, see Windows Secure Boot certificate expiration and CA updates.

Windows updates do not install Microsoft Store application updates. If you are an enterprise user, see Microsoft Store apps - Configuration Manager. If you are a consumer user, see Get updates for apps and games in Microsoft Store.

Support for Windows 10 will end in October 2025

After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. Your PC will still work, but we recommend moving to Windows 11.

Learn more

Summary

Important: Use EKB KB5015684 to update to Windows 10, version 22H2.

This preview update contains the fixes and quality improvements contained in the following updates:

The following is a summary of the key issues that this update addresses. The bold text within the brackets indicates the item or area of the change we are documenting.

  • [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 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.

For an overview of Windows 10, version 22H2, see its update history page.

Follow @WindowsUpdate to find out when new content is published to the Windows release health dashboard.

For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types.

Known issues in this update

Symptoms

After installing the August 2025 Windows security update (KB5063709), you might experience delays or uneven audio and video performance when using Network Device Interface (NDI) to stream or transfer feeds between PCs.

This issue affects streaming apps such as OBS Studio (Open Broadcaster Software) and NDI Tools, especially when Display Capture is enabled on the source PC. The problem can even occur under low-bandwidth conditions.

Workaround

To work around the issue, NDI recommends manually changing the NDI Receive Mode to use TCP or UDP instead of RUDP. For steps to do this, see the NDI support site: Traffic Drops After Windows Update. 

Next step

The issue is under investigation, and additional information will be shared as soon as it becomes available.

Servicing stack update (KB5063979) - 19045.6271

Microsoft now combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). SSUs improve the reliability of the update process to mitigate potential issues while installing updates.

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. To learn more about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.

How to get this update

Before you install this update

Based on your installation scenario, choose one of the following:

  • For offline OS image servicing:

    If your image does not have the July 25, 2023 (KB5028244) or later LCU, you must install the special standalone October 13, 2023 SSU (KB5031539) before installing this update.

  • For Windows Server Update Services (WSUS) deployment or when installing the standalone package from Microsoft Update Catalog:

    If your devices do not have the May 11, 2021 (KB5003173) or later LCU, you must install the special standalone August 10, 2021 SSU (KB5005260) before installing this update.

Install this update

To install this update, use one of the following Windows and Microsoft release channels.

Available

Next Step

Checkmark emoji

Go to Settings > Update & Security > Windows Update. In the Optional updates available area, you will find the link to download and install the update.

If you want to remove the LCU

To remove the LCU after installing the combined SSU and LCU package, use the DISM/Remove-Package command line option with the LCU package name as the argument. You can find the package name by using this command: DISM /online /get-packages.

Running Windows Update Standalone Installer (wusa.exe) with the /uninstall switch on the combined package will not work because the combined package contains the SSU. You cannot remove the SSU from the system after installation.

File information

A list of the files that are included in this update are provided in a CSV (Comma delimited) (*.csv) file. The file can be opened in a text editor such as Notepad or in Microsoft Excel.

Download IconDownload the file information for this cumulative update KB5063842 now.

Download IconDownload the file information for the SSU (KB5063979) - version 19045.6271 update now.

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