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Release Date:

16/08/2022

Version:

OS Build 20348.946

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 non-security update includes quality improvements. Key changes include:  

  • New! Enhances Microsoft Defender for Endpoint’s ability to identify and intercept ransomware and advanced attacks.

  • New! Compresses a file regardless of its size if you have configured Server Message Block (SMB) Compression. For more information, see SMB Compression.

  • Addresses an issue that prevents the Startup Task API from working as expected for certain apps.

  • Addresses an issue that causes Kerberos authentication to fail. The error is 0xc000009a (STATUS_INSUFFICIENT_RESOURCES “Insufficient system resources exist to complete the API”). This occurs when a client uses the Remote Desktop Protocol (RDP) to connect to a device that has enabled Remote Credential Guard.

  • Addresses an issue that causes ServerAssignedConfigurations to be null in a few full configuration scenarios.

  • Addresses an issue that prevents a private virtual LAN (PVLAN) from providing tenant and virtual machine (VM) isolation.

  • Addresses an issue that delays a client’s acquisition of the Internet Protocol version 6 (IPv6) address for extended periods in an IPv6 environment.

  • Addresses a known issue that causes Microsoft Edge to stop responding when you use IE mode. This issue also prevents you from interacting with a dialog.

  • Addresses an issue that might generate error 0x1E when you shut down or restart a device.

  • Addresses an issue that affects the installation of Microsoft Store apps when you have enabled Control-flow Enforcement.

  • Addresses an issue that prevents virtualized App-V Microsoft Office applications from opening or causes them to stop working.

  • Addresses an issue that might cause the deployment of the Windows Hello for Business certificate to fail in certain circumstances after you reset a device.

  • Addresses an issue that degrades BitLocker performance.

  • Addresses an issue that might prevent Windows from taking ownership of a Trusted Platform Module (TPM) device.

  • Addresses an issue that might cause a Windows device that is using BitLocker to stop working.

  • Addresses an issue that causes the Resultant Set of Policy tool (Rsop.msc) to stop working when it processes 1,000 or more “File System” security settings.

  • Addresses an issue that might cause Remote Desktop Session licensing to display a 60-minute disconnection warning after reconnecting.

  • Addresses an issue that causes the Settings app to stop working on server domain controllers (DCs) when accessing the Privacy > Activity history page.

  • Addresses an issue that prevents devices from receiving an offer from Windows Update for the same extension driver when that extension driver is already installed without the base driver.

  • Addresses a race condition that causes the Local Security Authority Subsystem Service (LSASS) to stop working on Active Directory domain controllers. This issue occurs when LSASS processes simultaneous Lightweight Directory Access Protocol (LDAP) over Transport Layer Security (TLS) requests that fail to decrypt. The exception code is 0xc0000409 (STATUS_STACK_BUFFER_OVERRUN).

  • Addresses an issue that affects a lookup for a nonexistent security ID (SID) from the local domain using read-only domain controller (RODC). The lookup unexpectedly returns the STATUS_TRUSTED_DOMAIN_FAILURE error instead of STATUS_NONE_MAPPED or STATUS_SOME_MAPPED.

  • Addresses an issue that affects input and output in the Storport driver and might cause your system to stop responding.

  • Addresses an issue that might affect Cluster Shared Volumes (CSV). The dismount time for a CSV might be longer when you migrate them.

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

Windows 10 servicing stack update - 20348.945

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

Starting at 12:00 A.M. Saturday, September 10, 2022, the official time in Chile will advance 60 minutes in accordance with the August 9, 2022 official announcement by the Chilean government about a daylight saving time (DST) time zone change. This moves the DST change which was previously September 4 to September 10.

Symptoms if the workaround is not used on devices between September 4, 2022 and September 11, 2022:

  • ​Time shown in Windows and apps will not be correct.

  • ​Apps and cloud services which use date and time for integral functions, such as Microsoft Teams and Microsoft Outlook, notifications and scheduling of meetings might be 60 minutes off.

  • ​Automation that uses date and time, such as Scheduled tasks, might not run at the expected time.

  • ​Timestamp on transactions, files, and logs will be 60 minutes off.

  • ​Operations that rely on time-dependent protocols such as Kerberos might cause authentication failures when attempting to logon or access resources.

  • ​Windows devices and apps outside of Chile might also be affected if they are connecting to servers or devices in Chile or if they are scheduling or attending meetings taking place in Chile from another location or time zone. Windows devices outside of Chile should not use the workaround, as it would change their local time on the device.

This issue is addressed in KB5017381.

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

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

Windows Update for Business

No

None. These changes will be included in the next security update to this channel.

Microsoft Update Catalog

No

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

Windows Server Update Services (WSUS)

No

You can import this update into WSUS manually. See the Microsoft Update Catalog for instructions.

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 5016693.

For a list of the files that are provided in the servicing stack update, download the file information for the SSU - version 20348.945

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