December 13, 2022—KB5021237 (OS Build 17763.3770)

10/11/22 **REMINDER **As of September 20, 2022, there are no more optional, non-security preview releases for the 2019 LTSC editions and Windows Server 2019. Only cumulative monthly security updates (known as the “B” or Update Tuesday release) will continue for the 2019 LTSC editions and Windows Server 2019.

11/17/20
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 10, version 1809, see its update history page.

Highlights

• This update addresses the suspension of daylight saving time (DST) in the Republic of Fiji for this year.
• This update addresses security issues for your Windows operating system.

Improvements

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

• This update addresses an issue that might affect applications that run on the Windows Lock Down Policy (WLDP). They might stop working.
• This update addresses an issue that affects remote networks. This issue stops you from reconnecting to them using DirectAccess.
• This update addresses a known issue that might affect the Local Security Authority Subsystem Service (LSASS.exe). It might leak memory on Windows domain controllers. This issue might occur when you install Windows updates dated November 8, 2022, or later.
• This update addresses a known issue that affects Direct Access. The issue might stop you from reconnecting to it after temporarily losing network connectivity. The issue might also occur when you switch between Wi-Fi networks or access points.
  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 new Security Update Guide website and the December 2022 Security Updates.

Windows 10 servicing stack update - 17763.3641

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.

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Known issues in this update

Symptom	Workaround
After installing KB5001342 or later, the Cluster Service might fail to start because a Cluster Network Driver is not found.	This issue occurs because of an update to the PnP class drivers used by this service. After about 20 minutes, you should be able to restart your device and not encounter this issue.
For more information about the specific errors, cause, and workaround for this issue, please see KB5003571.
After installing this update, apps that use ODBC connections utilizing the Microsoft ODBC SQL Server Driver (sqlsrv32.dll) to access databases might fail to connect. You might receive an error within the app or you might receive an error from SQL Server, such as “The EMS System encountered a problem” with “Message: [Microsoft][ODBC SQL Server Driver] Protocol error in TDS Stream” or “Message: [Microsoft][ODBC SQL Server Driver]Unknown token received from SQL Server”. Note for developers Apps affected by this issue might fail to fetch data, for example when using the SQLFetch function. This issue might occur when calling SQLBindCol function before SQLFetch or calling SQLGetData function after SQLFetch and when a value of 0 (zero) is given for the ‘BufferLength’ argument for fixed datatypes larger then 4 bytes (such as SQL_C_FLOAT).If you are unsure if you are using any affected apps, open any apps which use a database and then openCommand Prompt(select**Start then typecommand prompt **and select it) and type the following command: `

tasklist /m sqlsrv32.dll

`| This issue is addressed in KB5022286.
After installing this update on Hyper-V hosts managed by SDN configured System Center Virtual Machine Manager (VMM), you might receive an error on workflows involving creating a new Network Adapter (also called a Network Interface Card or NIC) joined to a VM network or a new Virtual Machine (VM) with a Network Adapter joined to a VM network. Existing VMs with existing Network Adapters should not have issues connecting after installing this update, only new Network Adapters created after installation of this update are affected.When experiencing this issue, you might receive one of the following errors:

• When creating a new VM or a new network adapter on an existing VM, you might receive, “<vmName> failed to modify device 'Ethernet Connection”
• Software defined networking (SDN) software load balancer service might fail, and you might receive, “<SLBVMName> failed to modify device ‘Ethernet Connection’ error”
• SDN RAS Gateway service might fail, and you might receive, “<GatewayVMName> failed to modify device ‘Ethernet Connection’ error”
  | This issue is addressed in KB5022554.

How to get this update

Before installing this updateMicrosoft 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 the LCU. For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.Prerequisite:You**must **install the August 10, 2021 SSU (KB5005112) before installing the LCU.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: Windows 10Classification: Security Updates

If you want to remove the LCUTo 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 informationFor a list of the files that are provided in this update, download the file information for cumulative update 5021237.For a list of the files that are provided in the servicing stack update, download the file information for the SSU - version 17763.3641.