August 29, 2024—KB5041582 (OS Build 19045.4842) Preview

^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 non-security issues for your Windows operating system.

Improvements

Important: Use EKB KB5015684 to update to Windows 10, version 22H2.

This non-security update includes quality improvements. Below is a summary of the key issues that this update addresses when you install this KB. If there are new features, it lists them as well. The bold text within the brackets indicates the item or area of the change we are documenting.

[Input Method Editor (IME)] When a combo box has input focus, a memory leak might occur when you close that window.
[Country and Operator Settings Asset] This update brings COSA profiles up to date for certain mobile operators.
[Bluetooth] An app stops responding because of a memory leak in a device.
[Bind Filter Driver] Your system might stop responding when it accesses symbolic links.
[Unified Write Filter (UWF) and Microsoft System Center Configuration Manager (SCCM)] An SCCM task to re-enable UWF fails because of a deadlock in UWF. This stops the device from restarting when you expect it.

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 (KB5041581) - 19045.4840

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
After installing this update, you might be unable to change your user account profile picture. When attempting to change a profile picture by selecting the button Start> Settings > Account > Your info and, under Create your picture, clicking on Browse for one, you might receive an error message with error code 0x80070520.	After further investigation, we concluded this issue has very limited or no impact for this Windows version. If you encounter this issue on your device, please contact Windows support for help
After installing this security update, you might face issues with booting Linux if you have enabled the dual-boot setup for Windows and Linux in your device. Resulting from this issue, your device might fail to boot Linux and show the error message “Verifying shim SBAT data failed: Security Policy Violation. Something has gone seriously wrong: SBAT self-check failed: Security Policy Violation.” The August 2024 Windows security update applies a Secure Boot Advanced Targeting (SBAT) setting to devices that run Windows to block old, vulnerable boot managers. This SBAT update will not be applied to devices where dual booting is detected. On some devices, the dual-boot detection did not detect some customized methods of dual-booting and applied the SBAT value when it should not have been applied.	The September 2024 Windows security update (KB5043064) and later updates do not contain the settings that caused this issue. On Windows-only systems, after installing the September 2024 or later updates, you can set the registry key documented in CVE-2022-2601 and CVE-2023-40547 to ensure the SBAT security update is applied. On systems that dual-boot Linux and Windows, there are no additional steps necessary after installing the September 2024 or later updates.
After installing this update, you might experience a black screen when you login to Azure Virtual Desktop (AVD). You might also notice that you are unable to log out of your account and the black screen persists even after disconnecting and reconnecting to AVD. Resulting from this issue, the application event log in Event viewer will show an application error with Event ID:1000 indicating a fault with the application ‘svchost.exe_AppXSvc’. Please note that AppX Deployment Service (AppxSvc) being in an invalid state could also cause other symptoms like the Start Menu to close unexpectedly due to registration issues. If you are observing the ‘svchost.exe_AppXSvc’ faulting application name in your application event logs, please apply the Known Issue Rollback (KIR) mentioned in the resolution section before trying to troubleshoot other symptoms.	This issue is addressed in KB5045594.
After installing this update, or subsequent updates, you might experience an extended black screen that stays between 10 to 30 mins when you login to Azure Virtual Desktop (AVD). Additional symptoms you might experience include: Failures related to single sign-on (SSO) experience on Office applications such as Outlook and Teams, which could prevent you from connecting to backend services or synchronizing data. Office apps display losing network connectivity even though other applications, such as Edge, retain intranet and internet access. This issue is caused by a deadlock in the interactions between the Azure Active Directory (AAD) broker and the underlying AppX deployment service(AppxSvc) and Background tasks infrastructure service. You are more likely to experience this issue if you are using FSLogix user profile containers on multi-session environments. FSLogix is a Microsoft tool that helps manage and speed up user profiles on computers, especially in virtual environments like remote desktops. Please note that this issue is different from the scenario where the AppX Deployment Service (AppxSvc) was in an invalid state, causing a black screen. That issue was resolved with Windows updates released on October 22, 2024 (KB5045594), and later.	We are investigating the issue and provide an update where more information is available.

Symptom

Workaround

After installing this update, you might be unable to change your user account profile picture.

When attempting to change a profile picture by selecting the button Start> Settings > Account > Your info and, under Create your picture, clicking on Browse for one, you might receive an error message with error code 0x80070520.

After further investigation, we concluded this issue has very limited or no impact for this Windows version.

If you encounter this issue on your device, please contact Windows support for help

After installing this security update, you might face issues with booting Linux if you have enabled the dual-boot setup for Windows and Linux in your device. Resulting from this issue, your device might fail to boot Linux and show the error message “Verifying shim SBAT data failed: Security Policy Violation. Something has gone seriously wrong: SBAT self-check failed: Security Policy Violation.”

The August 2024 Windows security update applies a Secure Boot Advanced Targeting (SBAT) setting to devices that run Windows to block old, vulnerable boot managers. This SBAT update will not be applied to devices where dual booting is detected. On some devices, the dual-boot detection did not detect some customized methods of dual-booting and applied the SBAT value when it should not have been applied.

The September 2024 Windows security update (KB5043064) and later updates do not contain the settings that caused this issue.

On Windows-only systems, after installing the September 2024 or later updates, you can set the registry key documented in CVE-2022-2601 and CVE-2023-40547 to ensure the SBAT security update is applied.

On systems that dual-boot Linux and Windows, there are no additional steps necessary after installing the September 2024 or later updates.

After installing this update, you might experience a black screen when you login to Azure Virtual Desktop (AVD). You might also notice that you are unable to log out of your account and the black screen persists even after disconnecting and reconnecting to AVD. Resulting from this issue, the application event log in Event viewer will show an application error with Event ID:1000 indicating a fault with the application ‘svchost.exe_AppXSvc’.

Please note that AppX Deployment Service (AppxSvc) being in an invalid state could also cause other symptoms like the Start Menu to close unexpectedly due to registration issues. If you are observing the ‘svchost.exe_AppXSvc’ faulting application name in your application event logs, please apply the Known Issue Rollback (KIR) mentioned in the resolution section before trying to troubleshoot other symptoms.

This issue is addressed in KB5045594.

After installing this update, or subsequent updates, you might experience an extended black screen that stays between 10 to 30 mins when you login to Azure Virtual Desktop (AVD). Additional symptoms you might experience include:

Failures related to single sign-on (SSO) experience on Office applications such as Outlook and Teams, which could prevent you from connecting to backend services or synchronizing data.
Office apps display losing network connectivity even though other applications, such as Edge, retain intranet and internet access.

This issue is caused by a deadlock in the interactions between the Azure Active Directory (AAD) broker and the underlying AppX deployment service(AppxSvc) and Background tasks infrastructure service. You are more likely to experience this issue if you are using FSLogix user profile containers on multi-session environments. FSLogix is a Microsoft tool that helps manage and speed up user profiles on computers, especially in virtual environments like remote desktops.

Please note that this issue is different from the scenario where the AppX Deployment Service (AppxSvc) was in an invalid state, causing a black screen. That issue was resolved with Windows updates released on October 22, 2024 (KB5045594), and later.

We are investigating the issue and provide an update where more information 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:

Based on your installation scenario, choose one of the following:

For offline OS image servicing:

If your image does not have the July 25, 2023 (KB5028244) or later LCU, you must install the special standalone Oct 13, 2023 SSU (KB5031539) 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

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

Windows Update Business Catalog Server Update Services

Available	Next Step
Yes	Go to Settings > Update & Security > Windows Update. In the Optional updates available area, you will find the link to download and install the update.

Available	Next Step
No	None. These changes will be included in the next security update to Windows Update for Business.

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

Available	Next Step
No	You can import this update into Windows Server Update Services (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 5041582.

For a list of the files that are provided in the servicing stack update, download the file information for the SSU (KB5041581) - version 19045.4840.

August 29, 2024—KB5041582 (OS Build 19045.4842) Preview

Highlights

Improvements

Windows 10 servicing stack update (KB5041581) - 19045.4840

How to get this update

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Highlights

Improvements

Windows 10 servicing stack update (KB5041581) - 19045.4840

Known issues in this update

How to get this update

Need more help?

Want more options?

Was this information helpful?

Thank you for your feedback!