Applies ToWindows Server 2022

Release Date:

7/8/2025

Version:

OS Build 20348.3932

Windows Secure Boot certificate expirationImportant: 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.

To learn about Windows update terminology, see the pages on types of Windows updates and monthly quality update types. For an overview, see the update history page for Windows Server 2022.       

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

Improvements

This security update includes improvements that were a part of update KB5060526 (released June 10, 2025). The following summary outlines key issues addressed by the KB update after you install it. Also, included are available new features. The bold text within the brackets indicates the item or area of the change.

  • [DHCP Server (known issue] Fixed: An issue in which the DHCP Server service might intermittently stop responding and affects IP renewal for clients.

  • [Language and character support] Fixed: An issue that affected some Chinese characters and experienced compliance issue with GB18030. These characters didn’t display correctly or weren’t accepted when using extended Unicode. A modern ICU-based solution now properly supports GB18030-2022 requirements.

  • [Performance]​​​​​​​ Fixed: This update addresses an issue that prevented the complete removal of unused language packs and Feature on Demand packages, which previously led to unnecessary storage use and longer Windows Update installation times.

  • [Microsoft RPC Netlogon protocol] This update includes a security hardening change to the Microsoft RPC Netlogon protocol. This change improves security by tightening access checks for a set of remote procedure call (RPC) requests. After this update is installed, Active Directory domain controllers will no longer allow anonymous clients to invoke some RPC requests through the Netlogon RPC server. These requests are typically related to domain controller location. Certain file and print service software can be affected, including Samba. If your organization uses Samba, please refer to the Samba release notes. ​​​​​​​

For more information about security vulnerabilities, please refer to the Security Update Guide and the July 2025 Security Updates.

Windows Server 2022 servicing stack update (KB5062793) - 20348.3920

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) ensure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates. To learn more about SSUs, see Simplifying on-premises deployment of servicing stack updates.

Known issues in this update​​​​​​​

Symptoms

Following installation of this update, there might be issues when using the Microsoft Changjie IME (input method editor) for Traditional Chinese. Reported symptoms include:

  • Inability to form or select words after typing the full composition (associate phrase window).

  • Spacebar or blank key not responding.

  • Incorrect or distorted word outputs.

  • The conversion candidate window fails to display properly.

Workaround Windows IME supports a compatibility setting that enables the use of a previous version of an IME instead. Employing this option should help resolve this issue. To revert to the old version of the Microsoft Changjie IME, follow the steps at Revert to a previous version of an input method editor (IME).  Microsoft is working on releasing a solution and will provide more information when it is available.

How to get this update

Before you install this update

​​​​​​​Microsoft now combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.

Prerequisite for offline OS image servicing:

​​​​​​​Make sure that your image includes KB5030216 (09/12/2023) or a later LCU. If not, install it on your offline media before you install the latest update. This LCU updates the SSU version to 20348.1960. That is the minimum SSU version you must have to prevent error 0x800f0823 (CBS_E_NEW_SERVICING_STACK_REQUIRED).

Install this update

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

Available

Next Step

Included

This update downloads and installs automatically from Windows Update and Microsoft 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

For a list of the files provided in this update, download the file information for cumulative update 5062572​​​​​​​. 

For a list of the files provided in the servicing stack update, download the file information for the SSU (KB5062793) - version 20348.3920. 

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