KB4601319 CU Windows 10 v2004 build 19041.804 and v20H2 19042.804 Win Update

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    KB4601319 CU Windows 10 v2004 build 19041.804 and v20H2 19042.804

    KB4601319 CU Windows 10 v2004 build 19041.804 and v20H2 19042.804

    Cumulative Update - February 9, 2021
    Category: Win Update
    Last Updated: 24 Feb 2021 at 12:39
    UPDATE 2/24: KB4601382 CU Windows 10 v2004 build 19041.844 and v20H2 19042.844


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



    Windows 10 version 2004 all editions, Windows Server version 2004, Windows 10 version 20H2 all editions, Windows Server version 20H2 all editions
    Version:

    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

    • Updates to improve security when using input devices such as a mouse, keyboard, or pen.
    • Updates for verifying usernames and passwords.

    Improvements and fixes

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

    Windows 10, version 20H2

    This security update includes quality improvements. Key changes include:

    • This build includes all the improvements from Windows 10, version 2004.

    Windows 10, version 2004

    Note: This release also contains updates for Microsoft HoloLens (OS Build 19041.1136) released February 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 a possible elevation of privilege vulnerability in the win32k component.
    • Addresses an issue that might damage the file system of some devices and prevent them from starting up after running chkdsk /f.
    • Security updates to the Windows App Platform and Frameworks, Windows Apps, Windows Input and Composition, Windows Cloud Infrastructure, Windows Management, Windows Authentication, Windows Fundamentals, Windows Cryptography, Windows Virtualization, Windows Core Networking, and Windows Hybrid Cloud Networking.

    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.
    Microsoft and Discord have found incompatibility issues with some games using Direct3D 12 when the in-game overlay feature of Discord is enabled. When attempting to open affected games you might receive an error, or the game might close silently. To mitigate this issue, you can turn off the in-game overlay in settings within the Discord app.

    This issue is now resolved in an update to the Discord app. To verify you're on the latest version, right click on the Discord icon in the notification area and select "Check for updates...". If there are updates to install, it should install automatically but you might need to select the arrow icon in the upper right corner of the app to install the updated version. There is no update for Windows needed to resolve this issue.
    How to get this update

    Before installing this update

    Microsoft strongly recommends you install the latest servicing stack update (SSU) for your operating system before installing the latest cumulative update (LCU). SSUs improve the reliability of the update process to mitigate potential issues while installing the LCU and applying Microsoft security fixes. For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.

    If you are using Windows Update, the latest SSU (KB4598481) will be offered to you automatically. To get the standalone package for the latest SSU, search for it in the Microsoft Update Catalog.

    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
    File information

    For a list of the files that are provided in this update, download the file information for cumulative update 4601319.

    Note Some files erroneously have “Not applicable” in the “File version” column of the CSV file. This might lead to false positives or false negatives when using some third-party scan detection tools to validate the build.


    Source: https://support.microsoft.com/en-us/...a-40cfab2fbfde

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


    Direct download links for KB4601319 MSU file from Microsoft Update Catalog:

    Download KB4601319 MSU for Windows 10 v2004 and v20H2 32-bit (x86) - 141.1 MB

    Download KB4601319 MSU for Windows 10 v2004 and v20H2 64-bit (x64) - 415.7 MB

    Download KB4601319 MSU for Windows 10 v2004 and v20H2 ARM64 - 473.5 MB
    Brink's Avatar Posted By: Brink
    09 Feb 2021

  1. Ghot's Avatar
    Posts : 9,864
    Win 10 Home 10.0.19043.985 (x64) [21H1]
       #1

    Works fine. I see no problems.
    Took 5 mins, (coming from .789), start to finish including this screen shot...



    KB4601319 CU Windows 10 v2004 build 19041.804 and v20H2 19042.804-image1.png
      My Computer

  2. RingTailCoon's Avatar
    Posts : 1,300
    Windows 10 HOME 64-BIT
       #2

    Thank you, saves me on time! :)
      My Computer

  3. kado897's Avatar
    Posts : 40,175
    Windows 10 Home 64bit v20H2 and insider builds
       #3

    I'll wait until after my backup.
      My Computer

  4. Ghot's Avatar
    Posts : 9,864
    Win 10 Home 10.0.19043.985 (x64) [21H1]
       #4

    kado897 said:
    I'll wait until after my backup.


    Don't get me wrong. I wasn't brave. I made a backup Sunday night.
      My Computer

  5. kado897's Avatar
    Posts : 40,175
    Windows 10 Home 64bit v20H2 and insider builds
       #5

    Ghot said:
    Don't get me wrong. I wasn't brave. I made a backup Sunday night.
    I have a scheduled one at 17:00 every day. Redmond usually posts updates at 18:00.
      My Computer

  6. Ghot's Avatar
    Posts : 9,864
    Win 10 Home 10.0.19043.985 (x64) [21H1]
       #6

    kado897 said:
    I have a scheduled one at 17:00 every day. Redmond usually posts updates at 18:00.


    Yep... same as us, but with a 6 hour clock difference.
      My Computer

  7. kado897's Avatar
    Posts : 40,175
    Windows 10 Home 64bit v20H2 and insider builds
       #7

    Ghot said:
    Yep... six hours ahead of us.
    Five hours actually.
      My Computer

  8. Ghot's Avatar
    Posts : 9,864
    Win 10 Home 10.0.19043.985 (x64) [21H1]
       #8

    kado897 said:
    Five hours actually.


    It's 10:52am here. Where are you living? Out in the Atlantic Ocean?

    That's weird. I always thought it was 6 hour difference, even though I'm on GMT -5
      My Computer

  9. kado897's Avatar
    Posts : 40,175
    Windows 10 Home 64bit v20H2 and insider builds
       #9

    Ghot said:
    It's 10:52am here. Where are you living? Out in the Atlantic Ocean?

    That's weird. I always thought it was 6 hour difference, even though I'm on GMT -5
    I know people always say 6 hours but it's 5 for the East Coast except when the clocks change for about a week.
      My Computer


 
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