Windows 2012 R2 -2012 - KB4592484 and KB4592495 (Faling Update on some VM Servers)

Yasir Tanoli 6 Reputation points

Hello Support,

Please, assist, as I attempted to install this december Windows 2012 R2 patches are failing on some servers, while on others its installing successfully.

I have attempted everything to repair, no luck.

This Event ID under Windows Update Client: Event 31: "Windows Update Failed to Download an Update".

Please help resolve as failing on two our domain controllers, a Micrososft CA and Windows File Server.

Windows Server Setup
Windows Server Setup
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Setup: The procedures involved in preparing a software program or application to operate within a computer or mobile device.
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  1. Dave Patrick 426K Reputation points MVP

    Might try manual download and install.

    you'll only need one or the other, KB4592495 is security only. Also check the prerequisite SSU has been downloaded and installed.

    --please don't forget to Accept as answer if the reply is helpful--

    1 person found this answer helpful.

  2. Dave Patrick 426K Reputation points MVP

    As I mentioned another possibility is a repair install by running setup.exe from the root of the install media, but I give this less than a 5% chance of working.

    Time would likely be better spent standing up a new one. A replacement domain controller could be operational in about 30 minutes.

    --please don't forget to Accept as answer if the reply is helpful--

    1 person found this answer helpful.
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  3. Yasir Tanoli 6 Reputation points

    Hello Support,

    I did attempted to manual download and install. The issue remains and also when downloading the SSU KB4566425, it says Security update for this patch is already installed. Please, let me know the next steps. These two patches are failing on 3-4 VM Windows 2012 R2 while on others its successful.

    Please, let me know if you need me provide any specific logs which will help. Please, assist furthur.

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  4. Dave Patrick 426K Reputation points MVP

    May need to check the \windowsupdate.log file for error details. Also try;
    sfc /scannow
    dism /online /cleanup-image /restorehealth
    also the manual steps here.

    --please don't forget to Accept as answer if the reply is helpful--

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  5. AliceYang-MSFT 2,081 Reputation points


    I'm not sure about whether this is the reason why you couldn't download updates to your virtual machines but Starting in July 2020, all Windows Updates will disable the RemoteFX vGPU feature because of a security vulnerability.

    You can try to re-enable RemoteFX vGPU then retry.


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