KB5000802 CU Windows 10 v2004 build 19041.867 and v20H2 19042.867 Win Update

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    KB5000802 CU Windows 10 v2004 build 19041.867 and v20H2 19042.867

    KB5000802 CU Windows 10 v2004 build 19041.867 and v20H2 19042.867

    KB5000802 Cumulative Update - March 9, 2021
    Category: Win Update
    Last Updated: 19 Mar 2021 at 10:11

    UPDATE 3/18: KB5001649 CU Windows 10 v2004 build 19041.870 and v20H2 19042.870

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

    March 9, 2021 - KB5000802 (OS Builds 19041.867 and 19042.867)

    Windows 10 version 2004 all editions, Windows Server version 2004, Windows 10 version 20H, all editions, Windows Server version 20H2, all editions

    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.

    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.


    • Updates to improve security when Windows performs basic operations.
    • Updates to improve security when using Microsoft Office products.
    • Updates security for the Windows user interface.

    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 - 19041.860 and 19042.860

    • 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 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

    Note: This release also contains updates for Microsoft HoloLens (OS Build 19041.1140) released March 9, 2021. Microsoft will release an update directly to the Windows Update Client to improve Windows Update reliability on Microsoft HoloLens that have not updated to this most recent OS Build.

    This security update includes quality improvements. Key changes include:

    • Addresses an elevation of privilege security vulnerability documented in CVE-2021-1640 related to print jobs submitted to “FILE:” ports. After installing Windows updates from March 9, 2021 and later, print jobs that are in a pending state before restarting the print spooler service or restarting the OS will remain in an error state. Manually delete the affected print jobs and resubmit them to the print queue when the print spooler service is online.
    • Security updates to the Windows Shell, Windows Fundamentals, Windows Management, Windows Apps, Windows User Account Control (UAC), Windows Virtualization, the Windows Kernel, the Microsoft Graphics Component, Internet Explorer, Microsoft Edge Legacy, and Windows Media.

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

    For more information about the resolved security vulnerabilities, please refer to the new Security Update Guide website.

    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

    Symptom 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.
    [ADDED 3/10] After installing this update, you might receive an APC_INDEX_MISMATCH error with a blue screen when attempting to print to certain printers in some apps. This issue is resolved in KB5001567.
    When opening a document in Microsoft Word, Microsoft Excel, or any Microsoft Office applications, you might receive the error, "Microsoft Excel cannot open or save any more documents because there is not enough available memory or disk space". This issue only affects devices that have installed Microsoft Office apps from the Microsoft Store and are attempting to open a document that has triggered the use of the Protected View feature. 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 non-managed 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. To find out more about using Group Policies, see Group Policy Overview.
    After installing updates released March 9, 2021 or March 15, 2021, you might get unexpected results when printing from some apps. Issues might include:

    • Elements of the document might print as solid black/color boxes or might be missing, including barcodes, QR codes, and graphics elements, such as logos.
    • Table lines might be missing. Other alignment or formatting issues might also be present.
    • Printing from some apps or to some printers might result in a blank page or label.
    This issue is resolved in KB5001649.

    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). 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 and Microsoft Update Yes None. This update will be downloaded and installed automatically from Windows 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) 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 5000802.

    For a list of the files that are provided in the servicing stack update, download the file information for the SSU - version 19041.860 and 19042.860.

    Source: https://support.microsoft.com/en-us/...3-ef56d3626e14

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

    Direct download links for KB5000802 MSU file from Microsoft Update Catalog:

    Download KB5000802 MSU for Windows 10 v2004 and v20H2 32-bit (x86) - 152.2 MB

    Download KB5000802 MSU for Windows 10 v2004 and v20H2 64-bit (x64) - 446.0 MB

    Download KB5000802 MSU for Windows 10 v2004 and v20H2 ARM64 - 496.2 MB

    Brink's Avatar Posted By: Brink
    09 Mar 2021

  1. Posts : 69,674
    64-bit Windows 11 Pro for Workstations

    KB5000802 CU Windows 10 v2004 build 19041.867 and v20H2 19042.867-kb5000802.jpg
      My Computers

  2. Posts : 1,191
    Windows 11 Pro x64

    Quick and no issues here so far (21H1). Came with malicious software removal tool.

    KB5000802 CU Windows 10 v2004 build 19041.867 and v20H2 19042.867-capture.png
      My Computers

  3. Posts : 1,750
    Windows 10 HOME 64-BIT

    Didn't we saw that number before? Looks mighty familiar!
      My Computer

  4. Posts : 1,248
    Windows 10 Pro (Build 19043.1110)

    KB5000802 CU Windows 10 v2004 build 19041.867 and v20H2 19042.867-screenshot-2021-03-09-131306.png

    Quick and without issues, the way I like 'em.
      My Computer

  5. Posts : 5,365
    Windows 10 Home 64bit

    Fast download and install and as usual, SFC showed no integrity violations but DISM needed component store cleanup. Seems to be standard operating procedure with my rig.
      My Computer

  6. Posts : 1,750
    Windows 10 HOME 64-BIT

    TA-DAAAH!!! KB5000802 CU Windows 10 v2004 build 19041.867 and v20H2 19042.867-vers.jpg
      My Computer

  7. Posts : 50,055
    Windows 10 Home 64bit 21H1 and insider builds

    All done.
      My Computer

  8. Posts : 203
    Windows 10 Pro x64 21H2 build 19044.2130

    got it.
    KB5000802 CU Windows 10 v2004 build 19041.867 and v20H2 19042.867-winver.png
      My Computer

  9. Posts : 21,421
    19044.1586 - 21H2 Pro x64

    sfc and dism happy - all good so far.
    Deployment Image Servicing and Management tool / Version: 10.0.19041.844 / Image Version: 10.0.19041.867
      My Computer


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