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
    2020-12-22T11:12:56+00:00

    my sysrem is not sign in to microsoft acount instead

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  2. Anonymous
    2020-12-18T20:11:19+00:00

    Oh dear, what is going on here. This is the second release in just a few months that has crashed my system. Problems earlier in the year with a computer locked and would not reboot.. stuck on black screen.. rolled back to previous version and OK with subsequent updates until this one.. again, seemed to install just fine with no warnings and then locked up again... get my boot screen and then a bit of activity and then simply stops and hangs with a black screen.. no messages, no nothing.

    I am not a computer professional but have been playing this game since PC-DOS.. actually PC/M.. and know how to do a rollback but Windows 10 is very much a consumer system.. how many innocent users have been crashed and are having to call in expensive support to sort this matter... this is wrong, Microsoft, these mistakes are simply inexcusible... should have stuck to XP!

    I am pretty sure that I lost files the last time this happened... and seems to have damaged some of my images.

    should say that yesterday, I did a rollback but today it insisted on installing again requiring a further rollback... am going to have to cut the power to switch off if it keeps insistning..

    Currently rolled back to Windows 10 home 10.0.18363

    And now paused to the 22 January.

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  3. Anonymous
    2020-12-14T04:10:02+00:00

    After this update's installed, my pc started acting weird. When I hit Sleep on Start menu, the screen went off, but computer still run. And I can not wake it up. No keyboard and mouse response. Had to hold the shut down button on pc case to shut it down.  I uninstalled this update then everything get back to normal.

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  4. 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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  5. 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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