July 26, 2022—KB5015878 (OS Builds 19042.1865, 19043.1865, and 19044.1865) Preview

^7/12/22 IMPORTANT Windows Server, version 20H2 will reach end of service on August 9, 2022. After August 9, 2022, these devices will no longer receive monthly security and quality updates that contain protection from the latest security threats. To continue receiving security and quality updates, Microsoft recommends updating to the latest version of Windows Server.

We will continue to service the following editions: Windows 10 Enterprise and Education, Windows 10 IoT Enterprise, Windows 10 Enterprise multi-session, and Windows 10 on Surface Hub.

^5/10/22 REMINDER To update to one of the newer versions of Windows 10, we recommend that you use the appropriate Enablement Package KB (EKB). Using the EKB makes updating faster and easier and requires a single restart. To find the EKB for a specific OS, go to the Improvements section and click or tap the OS name to expand the collapsible section.

^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 20H2, see its update history page.

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

Highlights

New! Gives you the option to receive important notifications when focus assist is on. Focus assist is like a do not disturb mode that hides notifications.
Addresses an issue that causes certain docking stations to lose internet connectivity when waking from Sleep mode.
Adds functionality that improves the OS upgrade experience.
Addresses an issue that might cause consecutive video clip playback to fail in games that use DX12.
Addresses an issue that affects certain games that use the XAudio API to play sound effects.
Addresses an issue that affects the height of the Search box when you use multiple monitors that have different resolutions.
Addresses an issue that prevents certain troubleshooting tools from opening.

Improvements

: To view the list of addressed issues, click or tap the OS name to expand the collapsible section.

: Use EKB KB5003791 to update to Windows 10, version 21H2.

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

This build includes all the improvements from Windows 10, version 20H2.
No additional issues were documented for this release.

: Use EKB KB5000736 to update to Windows 10, version 21H1.

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

This build includes all the improvements from Windows 10, version 20H2.
No additional issues were documented for this release.

: Use EKB KB4562830 to update to Windows 10, version 20H2.

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

New! Provides the ability for you to consent to receive important notifications when focus assist is on.
New! Restores functionality for Windows Autopilot deployment scenarios that are affected by the security mitigation for hardware reuse. This update removes the one-time use restriction for self-deploying mode (SDM) and pre-provisioning (PP). This update also re-enables any User Principal Name (UPN) display in user-driven mode (UDM) deployments for approved manufacturers.
Reduces the overhead of resource contention in high input/output operations per second (IOPS) scenarios that have many threads contending on a single file.
Improves the reliability of a push-button reset after an OS upgrade.
Addresses an issue that makes the tenant restrictions event logging channel inaccessible if you remove the EN-US language pack.
Addresses an issue that prevents certain troubleshooting tools from opening.
Updates the Remove-Item cmdlet to properly interact with Microsoft OneDrive folders.
Addresses an issue that causes certain docking stations to lose internet connectivity when waking from Sleep mode.
Adds functionality that caches additional audio endpoint information to improve the OS upgrade experience.
Addresses an issue that might cause consecutive video clip playback to fail in games that use DX12.
Addresses an issue that affects certain games that use the XAudio API to play sound effects.
Addresses an issue that causes port mapping conflicts for containers.
Addresses an issue that causes Code Integrity to continue trusting a file after the file has been modified.
Addresses an issue that might cause Windows to stop working when you enable Windows Defender Application Control with the Intelligent Security Graph feature turned on.
Addresses an issue that affects the height of the Search box when you use multiple monitors that have different resolutions as measured dots per inch (DPI).
Addresses an issue that prevents the Storage Migration Service (SMS) from completing inventory on servers that have many shares. The system logs error event 2509 in Microsoft-Windows-StorageMigrationService/Admin channel (ErrorId=-2146233088/ErrorMessage="Invalid table id").
Addresses an issue that causes the Windows profile service to fail sporadically. The failure might occur when signing in. The error message is, “gpsvc service failed to sign in. Access denied”.
Addresses a known issue that affects Universal Windows Platform (UWP) apps. These apps might not open on devices that you have reset. This includes mobile device management (MDM) resets, such as Reset this PC, Push-button reset, and Autopilot Reset.

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 - 19042.1852, 19043.1852, and 19044.1852

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

Symptoms	Workaround
Devices with Windows installations created from custom offline media or custom ISO image might have Microsoft Edge Legacy removed by this update, but not automatically replaced by the new Microsoft Edge. This issue is only encountered when custom offline media or ISO images are created by slipstreaming this update into the image without having first installed the standalone servicing stack update (SSU) released March 29, 2021 or later. Note Devices that connect directly to Windows Update to receive updates are not affected. This includes devices using Windows Update for Business. Any device connecting to Windows Update should always receive the latest versions of the SSU and latest cumulative update (LCU) without any extra steps.	To avoid this issue, be sure to first slipstream the SSU released March 29, 2021 or later into the custom offline media or ISO image before slipstreaming the LCU. To do this with the combined SSU and LCU packages now used for Windows 10, version 20H2 and Windows 10, version 2004, you will need to extract the SSU from the combined package. Use the following steps to extract the SSU: Extract the cab from the msu via this command line (using the package for KB5000842 as an example): expand Windows10.0-KB5000842-x64.msu /f:Windows10.0-KB5000842-x64.cab <destination path> Extract the SSU from the previously extracted cab via this command line: *expand Windows10.0-KB5000842-x64.cab /f: <destination path> You will then have the SSU cab, in this example named SSU-19041.903-x64.cab**. Slipstream this file into your offline image first, then the LCU. If you have already encountered this issue by installing the OS using affected custom media, you can mitigate it by directly installing the new Microsoft Edge. If you need to broadly deploy the new Microsoft Edge for business, see Download and deploy Microsoft Edge for business.
After installing the June 21, 2021 (KB5003690) update, some devices cannot install new updates, such as the July 6, 2021 (KB5004945) or later updates. You will receive the error message, "PSFX_E_MATCHING_BINARY_MISSING".	For more information and a workaround, see KB5005322.


After installing this update, IE mode tabs in Microsoft Edge might stop responding when a site displays a modal dialog box. A modal dialog box is a form or dialog box that requires the user to respond before continuing or interacting with other portions of the webpage or app. Developer Note Sites affected by this issue call window.focus.	This issue is addressed in KB5016688. If you do not want to install this release, see the instructions below. This issue is resolved using Known Issue Rollback (KIR). Please note that it might take up to 24 hours for the resolution to propagate automatically to consumer devices and non-managed business devices. Restarting your Windows device might help the resolution apply to your device faster. For enterprise-managed devices that have installed an affected update and encountered this issue can resolve it by installing and configuring the special Group Policy listed below. For information on deploying and configuring these special Group Policy, please see How to use Group Policy to deploy a Known Issue Rollback. Group Policy download with Group Policy name: Download for Windows 10, version 20H2 and Windows 10, version 21H1 - Windows 10 20H2, 21H1 and 21H2 KB5014023 220624_22551 Known Issue Rollback Important You will need to install and configure the Group Policy for your version of Windows to resolve this issue.
Microsoft has received reports of issues affecting some printing devices following installation of this update. Symptoms observed may include duplicate copies of printers installed on a device (commonly with a similar name and the suffix "Copy1"), and applications which refer to the printer by a specific name cannot print. Normal printer usage might be interrupted, resulting in failure of printing operations.	This issue is addressed in KB5016616.
After installing updates released on June 28, 2022 or later, the Input Indicator and Language Bar might not appear in the notification area. The notification area is normally located on the right side of the taskbar. Affected devices have more than one language installed. The Input Indicator and Language Bar are used to switch between input or keyboard languages on Windows devices and are used especially with languages that use an Input Method Editors (IME).	This issue is addressed in KB5016616. If you are using an update released before August 9, 2022, see below. This issue is addressed using a Known Issue Rollback (KIR). Note that it might take up to 24 hours for the KIR to propagate automatically to consumer devices and non-managed business devices. Restarting your Windows device might help the KIR to apply to your device faster. For enterprise-managed devices that have installed an affected update and encountered this issue, you can address it by installing and configuring a special Group Policy. The special Group Policy can be found in Computer Configuration > Administrative Templates > <Group Policy name listed below>. For information about deploying and configuring these special Group Policy, seeHow to use Group Policy to deploy a Known Issue Rollback. Group Policy downloads with Group Policy name: Download for Windows 10, version 21H2; Windows10, version 21H1; Windows 10, version 20H2 - KB5014666 220706_033027 Known Issue Rollback Important You must install and configure the Group Policy for your version of Windows to address this issue.
After installing this update, XPS Viewer might be unable to open XML Paper Specification (XPS) documents in some non-English languages, including some Japanese and Chinese character encodings. This issue affects both XML Paper Specification (XPS) and Open XML Paper Specification (OXPS) files. When encountering this issue, you may receive an error, "This page cannot be displayed" within XPS Viewer or it might stop responding and have high CPU usage with continually increasing memory usage. When the error is encountered, if XPS Viewer is not closed it might reach up to 2.5GB of memory usage before closing unexpectedly. This issue does not affect most home users. The XPS Viewer is no longer installed by default as of Windows 10, version 1803 and must be manually installed.	This issue is addressed in KB5017380.
After installing this update, some Windows devices might have issues with audio not working. Some affected Windows devices might have no audio, but other affected Windows devices might only have issues on certain ports, certain audio devices or only within certain applications. Most affected audio devices drivers have the "audio enhancements" setting disabled before installing this update or the sound device driver has issues with the "audio enhancements" feature.	This issue can be mitigated differently depending on your symptoms and if you have installed the update already. Please see the known issue on Windows release health for instructions to prevent and mitigate this issue. This issue is addressed using a Known Issue Rollback (KIR). This KIR will prevent the issue on Windows devices that have not installed KB5015878, but will have no effect on devices already affected by this known issue. Please note that it might take up to 24 hours for the KIR to propagate automatically to consumer devices and non-managed business devices. Restarting your Windows device might help the KIR apply to your device faster. For enterprise-managed devices that have installed an affected update and encountered this issue, you can address it by installing and configuring a special Group Policy. The special Group Policy can be found in Computer Configuration > Administrative Templates> <Group Policy name listed below>. For information about deploying and configuring these special Group Policy, see How to use Group Policy to deploy a Known Issue Rollback. Group Policy downloads with Group Policy name: Download for Windows 10, version 21H2, Windows 10, version 21H2, Windows 10, version 20H2 - KB5015878 220706_045043 Known Issue Rollback Important You must install and configure the Group Policy for your version of Windows to resolve this issue.

Symptoms

Workaround

Devices with Windows installations created from custom offline media or custom ISO image might have Microsoft Edge Legacy removed by this update, but not automatically replaced by the new Microsoft Edge. This issue is only encountered when custom offline media or ISO images are created by slipstreaming this update into the image without having first installed the standalone servicing stack update (SSU) released March 29, 2021 or later.

Note Devices that connect directly to Windows Update to receive updates are not affected. This includes devices using Windows Update for Business. Any device connecting to Windows Update should always receive the latest versions of the SSU and latest cumulative update (LCU) without any extra steps.

To avoid this issue, be sure to first slipstream the SSU released March 29, 2021 or later into the custom offline media or ISO image before slipstreaming the LCU. To do this with the combined SSU and LCU packages now used for Windows 10, version 20H2 and Windows 10, version 2004, you will need to extract the SSU from the combined package. Use the following steps to extract the SSU:

Extract the cab from the msu via this command line (using the package for KB5000842 as an example): expand Windows10.0-KB5000842-x64.msu /f:Windows10.0-KB5000842-x64.cab <destination path>
Extract the SSU from the previously extracted cab via this command line: expand Windows10.0-KB5000842-x64.cab /f:* <destination path>
You will then have the SSU cab, in this example named SSU-19041.903-x64.cab. Slipstream this file into your offline image first, then the LCU.

If you have already encountered this issue by installing the OS using affected custom media, you can mitigate it by directly installing the new Microsoft Edge. If you need to broadly deploy the new Microsoft Edge for business, see Download and deploy Microsoft Edge for business.

After installing the June 21, 2021 (KB5003690) update, some devices cannot install new updates, such as the July 6, 2021 (KB5004945) or later updates. You will receive the error message, "PSFX_E_MATCHING_BINARY_MISSING".

For more information and a workaround, see KB5005322.

After installing this update, IE mode tabs in Microsoft Edge might stop responding when a site displays a modal dialog box. A modal dialog box is a form or dialog box that requires the user to respond before continuing or interacting with other portions of the webpage or app.

Developer Note Sites affected by this issue call window.focus.

This issue is addressed in KB5016688. If you do not want to install this release, see the instructions below.

This issue is resolved using Known Issue Rollback (KIR). Please note that it might take up to 24 hours for the resolution to propagate automatically to consumer devices and non-managed business devices. Restarting your Windows device might help the resolution apply to your device faster. For enterprise-managed devices that have installed an affected update and encountered this issue can resolve it by installing and configuring the special Group Policy listed below. For information on deploying and configuring these special Group Policy, please see How to use Group Policy to deploy a Known Issue Rollback.

Group Policy download with Group Policy name:

Download for Windows 10, version 20H2 and Windows 10, version 21H1 - Windows 10 20H2, 21H1 and 21H2 KB5014023 220624_22551 Known Issue Rollback

Important You will need to install and configure the Group Policy for your version of Windows to resolve this issue.

Microsoft has received reports of issues affecting some printing devices following installation of this update. Symptoms observed may include duplicate copies of printers installed on a device (commonly with a similar name and the suffix "Copy1"), and applications which refer to the printer by a specific name cannot print.

Normal printer usage might be interrupted, resulting in failure of printing operations.

This issue is addressed in KB5016616.

After installing updates released on June 28, 2022 or later, the Input Indicator and Language Bar might not appear in the notification area. The notification area is normally located on the right side of the taskbar. Affected devices have more than one language installed. The Input Indicator and Language Bar are used to switch between input or keyboard languages on Windows devices and are used especially with languages that use an Input Method Editors (IME).

This issue is addressed in KB5016616. If you are using an update released before August 9, 2022, see below.

This issue is addressed using a Known Issue Rollback (KIR). Note that it might take up to 24 hours for the KIR to propagate automatically to consumer devices and non-managed business devices. Restarting your Windows device might help the KIR to apply to your device faster. For enterprise-managed devices that have installed an affected update and encountered this issue, you can address it by installing and configuring a special Group Policy. The special Group Policy can be found in Computer Configuration > Administrative Templates > <Group Policy name listed below>. For information about deploying and configuring these special Group Policy, seeHow to use Group Policy to deploy a Known Issue Rollback.

Group Policy downloads with Group Policy name:

Download for Windows 10, version 21H2; Windows10, version 21H1; Windows 10, version 20H2 - KB5014666 220706_033027 Known Issue Rollback

Important You must install and configure the Group Policy for your version of Windows to address this issue.

After installing this update, XPS Viewer might be unable to open XML Paper Specification (XPS) documents in some non-English languages, including some Japanese and Chinese character encodings. This issue affects both XML Paper Specification (XPS) and Open XML Paper Specification (OXPS) files. When encountering this issue, you may receive an error, "This page cannot be displayed" within XPS Viewer or it might stop responding and have high CPU usage with continually increasing memory usage. When the error is encountered, if XPS Viewer is not closed it might reach up to 2.5GB of memory usage before closing unexpectedly.

This issue does not affect most home users. The XPS Viewer is no longer installed by default as of Windows 10, version 1803 and must be manually installed.

This issue is addressed in KB5017380.

After installing this update, some Windows devices might have issues with audio not working. Some affected Windows devices might have no audio, but other affected Windows devices might only have issues on certain ports, certain audio devices or only within certain applications. Most affected audio devices drivers have the "audio enhancements" setting disabled before installing this update or the sound device driver has issues with the "audio enhancements" feature.

This issue can be mitigated differently depending on your symptoms and if you have installed the update already. Please see the known issue on Windows release health for instructions to prevent and mitigate this issue.

This issue is addressed using a Known Issue Rollback (KIR). This KIR will prevent the issue on Windows devices that have not installed KB5015878, but will have no effect on devices already affected by this known issue. Please note that it might take up to 24 hours for the KIR to propagate automatically to consumer devices and non-managed business devices. Restarting your Windows device might help the KIR apply to your device faster. For enterprise-managed devices that have installed an affected update and encountered this issue, you can address it by installing and configuring a special Group Policy. The special Group Policy can be found in Computer Configuration > Administrative Templates> <Group Policy name listed below>. For information about deploying and configuring these special Group Policy, see How to use Group Policy to deploy a Known Issue Rollback.

Group Policy downloads with Group Policy name:

Download for Windows 10, version 21H2, Windows 10, version 21H2, Windows 10, version 20H2 - KB5015878 220706_045043 Known Issue Rollback

Important You must install and configure the Group Policy for your version of Windows to resolve this issue.

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 or 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	Yes	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 5015878.

For a list of the files that are provided in the servicing stack update, download the file information for the SSU - version 19042.1852, 19043.1852, and 19044.1852.

July 26, 2022—KB5015878 (OS Builds 19042.1865, 19043.1865, and 19044.1865) Preview

Highlights

Improvements

Windows 10 servicing stack update - 19042.1852, 19043.1852, and 19044.1852

Known issues in this update

How to get this update

Need more help?

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Highlights

Improvements

Windows 10, version 21H2

Windows 10, version 21H1

Windows Server, version 20H2

Windows 10 servicing stack update - 19042.1852, 19043.1852, and 19044.1852

Known issues in this update

Click or tap to view the known issues

How to get this update

Need more help?

Want more options?

Was this information helpful?

Thank you for your feedback!