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Release Date:

2/14/2023

Version:

OS Build 20348.1547

12/22/22
IMPORTANT 
After November 22, 2022, there are no more optional, non-security preview releases for Windows Server 2022. Only cumulative monthly security updates (known as the "B" or Update Tuesday release) will continue for Windows Server 2022. 

For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows Server 2022, see its update history page.    

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

Improvements

This security update includes quality improvements. When you install this KB:

  • New! It updates the text and web link for Windows Admin Center (WAC) notifications. These appear after you sign in to the desktop unless you have turned them off. The WAC notifications highlight the available Windows Server management options.

  • This update addresses an issue that affects searchindexer.exe. It randomly stops you from signing in or signing out.

  • This update addresses an issue that affects local Kerberos authentication. It fails if the local Key Distribution Center (KDC) service is not active.

  • This update addresses an issue that affects cbs.log. This issue logs messages that are not error messages in cbs.log.

  • This update addresses an issue that affects a virtual machine (VM) that has a dual stack IPv4 and IPv6 private IP (PIP) address. When you migrate the VM from one host to another, the PIPv6 address stays mapped to the old host’s IPv6 Physical Address (PA). Because of this, the IPv6 PIP stops working.

  • This update addresses an issue that affects all commands that change security tags. On Windows 11, version 22H2 computers, the change will fail if you update the Network Controller but not the Remote Server Administration Tools (RSAT) clients.

  • This update addresses an issue that might occur when the Input Method Editor (IME) is active. Applications might stop responding when you use the mouse and keyboard at the same time.

  • This update addresses an issue that might affect FindWindow() or FindWindowEx(). They might return the wrong window handle.

  • This update addresses an issue that affects AppV. It stops file names from having the correct letter case (uppercase or lowercase).

  • This update addresses an issue that affects Microsoft Edge. The issue removes conflicting policies for Microsoft Edge. This occurs when you set the MDMWinsOverGPFlag in a Microsoft Intune tenant and Intune detects a policy conflict.

  • This update addresses an issue that affects Active Directory Federation Service (AD FS). The issue fails to apply the RequirePDC flag setting of “false.”

  • This update addresses an issue that affects MSInfo.exe. It does not correctly report the enforcement status of the Windows Defender Application Control (WDAC) user mode policy.

  • This update addresses an issue that affects the Resilient File System (ReFS) MSba tag. The issue causes a nonpaged pool leak.

  • This update addresses an issue that affects parity virtual disks. Using Server Manager to create them fails.

If you installed earlier updates, only the new updates contained in this package will be downloaded and installed on your device.

For more information about security vulnerabilities, please refer to the Security Update Guide and the February 2023 Security Updates.

Windows Server 2022 servicing stack update - 20348.1540

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.

Known issues in this update

Symptom

Workaround

Updates released February 14, 2023 or later might not be offered from some Windows Server Update Services (WSUS) servers to Windows 11, version 22H2. The updates will download to the WSUS server but might not propagate further to client devices. Affected WSUS servers are only those running Windows Server 2022 which have been upgraded from Windows Server 2016 or Windows Server 2019. This issue is caused by the accidental removal of required Unified Update Platform (UUP) MIME types during the upgrade to Windows Server 2022 from a previous version of Windows Server. This issue might affect security updates or feature updates for Windows 11, version 22H2. Microsoft Configuration Manager is not affected by this issue.

To mitigate this issue, please see Adding file types for Unified Update Platform on premises.

We are working on a resolution and will provide an update in an upcoming release.

After installing this update on guest virtual machines (VMs) running Windows Server 2022 on some versions of VMware ESXi, Windows Server 2022 might not start up. Only Windows Server 2022 VMs with Secure Boot enabled are affected by this issue. Affected versions of VMware ESXi are versions vSphere ESXi 7.0.x and below.

Please see VMware’s documentation to mitigate this issue.

This issue is addressed in VMware ESXi 7.0 U3k, released on February 21st 2023. Microsoft has addressed this issue in KB5023705.

The following is from VMware’s documentation: 

  • Virtual machines running on any version of vSphere ESXi 8.0.x are not impacted by this issue

  • vSphere ESXi 6.7 is End of general Support. For more information, see The End of General Support for vSphere 6.5 and vSphere 6.7 is October 15, 2022.

  • If you already face the issue, after patching the host to ESXi 7.0 Update 3k, just power on the affected Windows Server 2022 VMs. After you patch a host to ESXi 7.0 Update 3k, you can migrate a running Windows Server 2022 VM from a host of version earlier than ESXi 7.0 Update 3k, install KB5022842, and the VM boots properly without any additional steps required.

How to get this update

Before installing 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.

Install this update

Release Channel

Available

Next Step

Windows Update and Microsoft Update

Yes

None. This update will be downloaded and installed automatically from Windows Update.

Windows Update for Business

Yes

None. This update will be downloaded and installed automatically from Windows Update in accordance with configured policies.

Microsoft Update Catalog

Yes

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Windows Server Update Services (WSUS)

Yes

This update will automatically sync with WSUS if you configure Products and Classifications as follows:

Product: Microsoft Server operating system-21H2

Classification: Security Updates

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 that are provided in this update, download the file information for cumulative update 5022842

For a list of the files that are provided in the servicing stack update, download the file information for the SSU - version 20348.1540

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