Cumulative Updates - December 2020

Sumit 44,316 Reputation points Volunteer Moderator
2020-12-09T02:50:55+00:00

This is a summary of the cumulative updates released on December 8th for all the supported consumer releases of Windows 10. This is the last release for Windows 10 1903 Home and Pro editons.

  1. Windows 10 version 2004 and version 20H2 - KB4592438, Build 19041.685 and 19042.685
  2. Windows 10 versions 1903 and 1909 - KB4592449, Build 18362.1256and 18363.1256

NEW 12/8/20

IMPORTANT Adobe Flash Player will go out of support on December 31, 2020. For more information, see Adobe Flash end of support on December 31, 2020. Flash content will be blocked from running in Flash Player beginning January 12, 2021. For more information, see Adobe Flash Player EOL General Information Page.

UPDATED 12/8/20

REMINDER Windows 10, version 1903 has reached end of servicing as of this release dated December 8, 2020. To continue receiving security and quality updates, Microsoft recommends that you update to the latest version of Windows 10. If you want to update to Windows 10, version 1909, you must use the Enablement Package KB4517245 (EKB). Using the EKB makes updating faster and easier and requires a single restart. For more information, see Windows 10, version 1909 delivery options.

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 1903 update history home page.


Windows 10 update history

https://support.microsoft.com/en-in/help/4529964/windows-10-update-history

Windows 10 release dashboard

https://docs.microsoft.com/en-us/windows/release-information/status-windows-10-2004

Windows 10 message center

https://docs.microsoft.com/en-us/windows/release-information/windows-message-center#407

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


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Happy Holidays to everyone!

Windows for home | Windows 10 | Windows update

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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  1. Anonymous
    2020-12-10T17:50:03+00:00

    Thanks for the post and repeat. Users are free to go to the original post for December. There are important notices.

    https://answers.microsoft.com/en-us/windows//windows_10-update/cumulative-updates-december-2020/f3abd1d1-9dcd-46d1-a4ad-7611d10b20f5?messageId=62b9599f-b672-4d98-9b88-ac1e6409forum

    Add the DDL next month for the updates and servicing stack ones and I would pin yours.

    Aww, Thanks, I was about to say the same.

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  2. Anonymous
    2020-12-10T12:01:08+00:00

    Can't install either. I have a fresh windows 10 install (formatted everything) two weeks ago.

    Windows 10 Pro

    64 bit

    20H2 (OS-version 19042.630)

    Installing: KB4592438

    Error: 0x800f081f

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  3. Anonymous
    2020-12-10T04:18:46+00:00

    Hello, I just wanted to say that with this update I cannot stream on Twitch when HDR is on without having lag on the camera movement of the game. With the other update (KB4586781) everything was fine with HDR on. Monitor is on native resolution of 3840x2160@60HZ, stream with Twitch Studio is 720@60. When I disable HDR on Screen Settings then is ok, everything works and computer is quieter. Really don´t have a clue why this happens.

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  5. Anonymous
    2020-12-10T02:27:59+00:00

    Hello, after the update. I can't run Windows Update again.

    • Microsoft version and build: 1607 14393.4104
    • Home or Pro: 2016 Standard
    • 32 bit or 64 bit. 64bit
    • Update you are installing: KB4593226
    • Reported error messages: 0x80070006

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