KB5001391 CU Windows 10 v2004 build 19041.964 and v20H2 19042.964 Win Update

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    KB5001391 CU Windows 10 v2004 build 19041.964 and v20H2 19042.964

    KB5001391 CU Windows 10 v2004 build 19041.964 and v20H2 19042.964

    Cumulative Update Preview "Optional" update - April 28, 2021
    Category: Win Update
    Last Updated: 11 May 2021 at 12:11
    UPDATE 5/11: KB5003173 CU Windows 10 v2004 build 19041.985 and v20H2 19042.985

    The KB4562830 Enablement Package allows you to go from build 19041 (v2004) to 19042 (v20H2).



    April 28, 2021 - KB5001391 (OS Builds 19041.964 and 19042.964) Preview

    4/13/21
    REMINDER Microsoft removed the Microsoft Edge Legacy desktop application that is out of support in March 2021. On April 13, 2021, we installed the new Microsoft Edge. For more information, see New Microsoft Edge to replace Microsoft Edge Legacy with April’s Windows 10 Update Tuesday release.

    2/24/21
    IMPORTANT As part of the end of support for Adobe Flash, KB4577586 is now available as an optional update from Windows Update (WU) and Windows Server Update Services (WSUS). Installing KB4577586 will remove Adobe Flash Player permanently from your Windows device. Once installed, you cannot uninstall KB4577586. For more details about Microsoft’s plans, see Update on Adobe Flash Player End of Support.

    11/17/20
    For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. To view other notes and messages, see the Windows 10, version 2004 update history home page.

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

    Highlights

    • Introducing news and interests on the Windows 10 taskbar

      With news and interests on the Windows taskbar, you get quick access to an integrated feed of dynamic content, such as news, weather, sports, and more, that updates throughout the day. You can personalize your feed with relevant content tailored for you. In the coming weeks, you will be able to seamlessly peek into your feed directly from the taskbar throughout your day without disrupting your workflow. For more information, see Personalized content at a glance: Introducing news and interests on the Windows 10 taskbar.
    • Updates an issue to prevent blank tiles from appearing on the Start menu after updating to a newer version of Windows 10.
    • Adds the ability to adjust the amount of idle time before a headset goes to sleep in the Settings app for Windows Mixed Reality.

    Improvements and fixes

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

    Windows 10 servicing stack update - 19041.963 and 19042.963

    • 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.

    Windows 10, version 20H2

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

    • This build includes all the improvements from Windows 10, version 2004.
    • No additional issues were documented for this release.

    Windows 10, version 2004

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

    • Addresses an issue that prevents a site from transitioning out of Microsoft Edge IE Mode when expected.
    • Addresses an issue that fails to remove mandatory profiles completely when you sign out when using the “Delete cached copies of roaming profiles” Group Policy.
    • Addresses an issue that causes blank tiles to appear on the Start menu with names such as “ms-resource:AppName” or "ms-resource:appDisplayName". These blank tiles represent the installed applications and appear for approximately 15 minutes after updating to a newer version of Windows 10. Installing this update prevents these blank tiles from appearing on the Start menu.
    • Addresses an issue with the Microsoft Japanese Input Method Editor (IME) that prevents an app's custom candidate window from displaying correctly.
    • Addresses an issue that occurs when you install inventory applications.
    • Addresses an issue that includes kernel mode rules for .NET applications in Windows Defender Application Control policies. As a result, the generated policies are significantly larger than necessary.
    • Addresses an issue that causes devices to fail Device Health Attestation.
    • Addresses an issue that turns off S Mode when you enable System Guard Secure Launch on a system running Windows 10 in S Mode.
    • Addresses an issue that causes lsass.exe memory usage to grow until the system becomes unusable. This occurs when Transport Layer Security (TLS) resumes a session.
    • Addresses an issue with a race condition between Task Scheduler and the Workstation Service. As a result, users cannot automatically join a hybrid Azure Active Directory (AAD) domain and error 0x80070490 is generated.
    • Addresses an issue that causes Azure Active Directory authentication to fail after signing in on Windows Virtual Desktop machines.
    • Addresses an issue that causes AAD Work Accounts to unexpectedly disappear from certain apps such Microsoft Teams or Microsoft Office.
    • Addresses an issue that accidently triggers hybrid AAD joining when the Group Policy “Register domain-joined computers as devices” is set to DISABLED. For more information, see Post configuration tasks for Hybrid Azure AD join.
    • Addresses an issue with a partial Service Connection Point (SCP) configuration that causes dsregcmd.exe to stop working. This issue occurs because of a case-sensitive domain ID name comparison that occurs when joining a hybrid Azure Active Directory domain using single sign-on (SSO).
    • Adds the ability to adjust the amount of idle time before a headset goes to sleep in the Settings app for Windows Mixed Reality.
    • Addresses an issue that might generate a stop error when Docker containers run with process isolation.
    • Addresses an issue that causes automatic enrollment and certificate retrieval to fail with the error, “The parameter is incorrect.”
    • Addresses an issue that might cause Microsoft Defender Application Guard virtual machines to stop responding when Microsoft Defender Application Guard for Office opens a document. This issue might occur on some devices or in drivers that utilize GPU Hardware Accelerated Scheduling.
    • Addresses an issue that prevents some media players from playing content on hybrid devices that are running with dGPU on iGPU displays.
    • Addresses an issue with race conditions that cause high CPU usage. As a result, the system stops working and deadlocks occur.
    • Addresses an issue with a deadlock in the New Technology File System (NTFS).
    • Addresses an issue that causes DWM.exe to stop working in some cases.
    • Improves the Windows Server Storage Migration Service by:
      • Adding support for migration from NetApp FAS arrays to Windows Servers and clusters.
      • Resolving multiple issues and improving reliability.

        For more information, see Storage Migration Service overview.


    • Addresses an issue that might prevent an application screen from working when using a Remote Desktop ActiveX control that is embedded in an HTML page.

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

    Windows Update Improvements
    Microsoft has released an update directly to the Windows Update client to improve reliability. Any device running Windows 10 configured to receive updates automatically from Windows Update, including Enterprise and Pro editions, will be offered the latest Windows 10 feature update based on device compatibility and Windows Update for Business deferral policy. This doesn't apply to long-term servicing editions.

    Known issues in this update

    Symptoms Workaround
    System and user certificates might be lost when updating a device from Windows 10, version 1809 or later to a later version of Windows 10. Devices will only be impacted if they have already installed any Latest cumulative update (LCU) released September 16, 2020 or later and then proceed to update to a later version of Windows 10 from media or an installation source which does not have an LCU released October 13, 2020 or later integrated. This primarily happens when managed devices are updated using outdated bundles or media through an update management tool such as Windows Server Update Services (WSUS) or Microsoft Endpoint Configuration Manager. This might also happen when using outdated physical media or ISO images that do not have the latest updates integrated.

    Note Devices using Windows Update for Business or that connect directly to Windows Update are not impacted. Any device connecting to Windows Update should always receive the latest versions of the feature update, including the latest LCU, without any extra steps.
    If you have already encountered this issue on your device, you can mitigate it within the uninstall window by going back to your previous version of Windows using the instructions here. The uninstall window might be 10 or 30 days depending on the configuration of your environment and the version you’re updating to. You will then need to update to the later version of Windows 10 after the issue is resolved in your environment.

    Note Within the uninstall window, you can increase the number of days you have to go back to your previous version of Windows 10 by using the DISM command /Set-OSUninstallWindow. You must make this change before the default uninstall window has lapsed. For more information, see DISM operating system uninstall command-line options.

    We are working on a resolution and will provide updated bundles and refreshed media in the coming weeks.
    When using the Microsoft Japanese Input Method Editor (IME) to enter Kanji characters in an app that automatically allows the input of Furigana characters, you might not get the correct Furigana characters. You might need to enter the Furigana characters manually.

    Note The affected apps are using the ImmGetCompositionString() function.
    We are working on a resolution and will provide an update in an upcoming release.
    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 using SSU:

    1. 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>
    2. Extract the SSU from the previously extracted cab via this command line: expand Windows10.0-KB5000842-x64.cab /f:* <destination path>
    3. 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
    A small subset of users have reported lower than expected performance in games after installing this update. Most users affected by this issue are running games full screen or borderless windowed modes and using two or more monitors. 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 device might help the resolution apply to your device faster. For enterprise-managed devices that have installed an affected update and encountered this issue, it can be resolved by installing and configuring a special Group Policy.

    Note Devices need to be restarted after configuring the special Group Policy. For help, please see How to use Group Policy to deploy a Known Issue Rollback. For general information on using Group Policies, see Group Policy Overview.

    How to get this update

    Before installing this update

    Prerequisite:

    Microsoft now combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). If you encounter the error, 0x800f0823 – CBS_E_NEW_SERVICING_STACK_REQUIRED, close the error message and install the last standalone SSU (KB4598481) before installing this LCU. You will not need to install this SSU (KB4598481) again for future updates.

    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 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.
    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 5001391.

    For a list of the files that are provided in the servicing stack update, download the file information for the SSU - version 19041.963 and 19042.963.


    Source: https://support.microsoft.com/en-us/...b-0ad8d9b4f96c

    See also: https://techcommunity.microsoft.com/...ce/ba-p/222376


    Direct download links for KB5001391 MSU file from Microsoft Update Catalog:

    Download KB5001391 MSU for Windows 10 v2004 and v20H2 32-bit (x86) - 262.8 MB

    Download KB5001391 MSU for Windows 10 v2004 and v20H2 64-bit (x64) - 570.4 MB

    Download KB5001391 MSU for Windows 10 v2004 and v20H2 ARM64 - 612.2 MB
    Brink's Avatar Posted By:

  1. Brink's Avatar
    Posts : 58,411
    64-bit Windows 11 Pro for Workstations
       #1

    KB5001391 CU Windows 10 v2004 build 19041.964 and v20H2 19042.964-kb5001391.jpg
      My Computers


  2. Posts : 168
    Windows 10 Pro 64-bit OEM
       #2

    DL now
      My Computer

  3. ddelo's Avatar
    Posts : 2,302
    Windows 10 Pro x64
       #3

    Thanks a lot Shawn.
    Downloading....
      My Computer

  4. LTSnow's Avatar
    Posts : 34
    Windows 10 Home v21H1 OS Build 19043.1110
       #4

    Just installed on my new clean install from yesterday (20H2). Took a little over 15 minutes from start to finish and all looks good so far. Thanks Shawn.
      My Computer

  5. AndreTen's Avatar
    Posts : 24,368
    Windows 10 (Pro and Insider Pro)
       #5

    Downloading now. Security update failed. Will see after this CU
      My Computers

  6. Busan's Avatar
    Posts : 9
    Win 10 Pro
       #6

    SSU update to 10.0.19041.963 (KB5003156) ---> it's already in KB5001391

    In case somebody want to know that SSU 10.0.19041.963 is KB5003156, you can download the cab file from uup, associate WinRar as the app to open the cab, double-click on the cab and Winrar opens it, scroll down to the .mum file and double-click on that, look inside, it's in there.

    KB5001391 CU Windows 10 v2004 build 19041.964 and v20H2 19042.964-ssu-uup.jpg
      My Computer

  7. Zardoc's Avatar
    Posts : 436
    Windows 10 Enterprise
       #7

    Busan said:
    SSU update to 10.0.19041.963 (KB5003156) ---> it's already in KB5001391

    In case somebody want to know that SSU 10.0.19041.963 is KB5003156, you can download the cab file from uup, associate WinRar as the app to open the cab, double-click on the cab and Winrar opens it, scroll down to the .mum file and double-click on that, look inside, it's in there.

    KB5001391 CU Windows 10 v2004 build 19041.964 and v20H2 19042.964-ssu-uup.jpg
    It's included now with CU and always will be from now on.
      My Computer

  8. Zardoc's Avatar
    Posts : 436
    Windows 10 Enterprise
       #8

    ddelo said:
    Thanks a lot Shawn.
    Downloading....
    Ditto Shawn. Thanks
      My Computer


  9. Posts : 183
    Windows 10 Pro x64 20H2 build 19042.804
       #9

    got it. no problems.

    KB5001391 CU Windows 10 v2004 build 19041.964 and v20H2 19042.964-winver.png
      My Computer


 
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