March 12, 2024—KB5035845 (OS Builds 19044.4170 and 19045.4170)
Applies To
Windows 10 Enterprise and Education, version 21H2 Windows 10 IoT Enterprise, version 21H2 Windows 10 Enterprise Multi-Session, version 21H2 Windows 10, version 22H2, all editions Windows 10 Enterprise LTSC 2021 Windows 10 IoT Enterprise LTSC 2021Release Date:
3/12/2024
Version:
OS Builds 19044.4170 and 19045.4170
NEW 03/12/24 IMPORTANT The following editions of Windows 10, version 21H2 will reach end of service on June 11, 2024:
- Windows 10 Enterprise and Education
- Windows 10 IoT Enterprise
- Windows 10 Enterprise multi-session
After that date, these devices will not receive monthly security and quality updates. These updates contain protections from the latest security threats. To continue receiving security and quality updates, we recommend that you update to the latest version of Windows.
We will continue to support Windows 10 Enterprise LTSC 2021 and Windows 10 IoT Enterprise LTSC 2021.
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 22H2, see its update history page.
Note Follow @WindowsUpdate to find out when new content is published to the Windows release health dashboard.
Highlights
-
This update addresses security issues for your Windows operating system.
Improvements
Note To view the list of addressed issues, click or tap the OS name to expand the collapsible section.
Important: Use EKB KB5015684 to update to Windows 10, version 22H2.
This security update includes quality improvements. Key changes include:
-
This build includes all the improvements from the supported Windows 10, version 21H2 editions.
-
No additional issues are documented for this release.
Important: Use EKB KB5003791 to update to Windows 10, version 21H2 on supported editions.
This security update includes quality improvements that were a part of update KB5034843 (released February 27, 2024). When you install this KB:
-
This update makes miscellaneous security improvements to internal OS functionality. No additional issues were documented for this release.
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 March 2024 Security Updates.
Windows 10 servicing stack update - 19044.4163 and 19045.4163
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.
|
Symptom |
Workaround |
|---|---|
|
Windows devices using more than one (1) monitor might experience issues with desktop icons moving unexpectedly between monitors or other icon alignment issues when attempting to use Copilot in Windows (in preview). |
We are gradually rolling out a new Copilot experience for devices with KB5039299or later updates installed. This new experience will address this issue. KB5039299 was released on June 25, 2024, and you can expect to receive the new Copilot experience sometime from now until the next few months. |
|
Copilot in Windows (in preview) is not currently supported when your taskbar is located vertically on the right or left of your screen. |
We are gradually rolling out a new Copilot experience for devices with KB5039299 or later updates installed. This new experience will address this issue. KB5039299 was released on June 25, 2024, and you can expect to receive the new Copilot experience sometime from now until the next few months. |
|
After you install KB5034203 (dated 01/23/2024) or later updates, some Windows devices that use the DHCP Option 235 to discover Microsoft Connected Cache (MCC) nodes in their network might be unable to use those nodes. Instead, these Windows devices will download updates and apps from the public internet. IT administrators also see increased download traffic on their internet routes. Those of you who use the Home edition of Windows are not likely to experience this issue. MCC and DHCP Option 235 are typically used in enterprise environments. |
This issue is addressed in KB5040525. |
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.
Prerequisite:
Based on your installation scenario, choose one of the following:
-
For offline OS image servicing:
If your image does not have the March 22, 2022 (KB5011543) or later LCU, you must install the special standalone May 10, 2022 SSU (KB5014032) 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
|
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 10, version 1903 and later 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 5035845.
For a list of the files that are provided in the servicing stack update, download the file information for the SSU - versions 19044.4163 and 19045.4163.
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