Windows 10: Cumulative Update KB4056890 Windows 10 v1607 Build 14393.2007


  1. Posts : 29,299
    64-bit Windows 10 Pro build 17672
       03 Jan 2018 #1

    Cumulative Update KB4056890 Windows 10 v1607 Build 14393.2007


    January 3, 2018 - KB4056890 (OS Build 14393.2007)

    Improvements and fixes

    This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:

    • Security updates to Microsoft Edge, Internet Explorer, Windows Graphics, Windows Kernel, Windows Datacenter Networking, and Windows SMB Server.

    Note This update isn't available with express installation files for Windows Server 2016.

    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, see the Security Update Guide.

    Windows Update Client Improvement
    Microsoft will release an update directly to the Windows Update Client to improve Windows Update reliability. It will only be offered to devices that have't installed the most recent updates.


    Known issues in this update

    Symptom Workaround
    When calling CoInitializeSecurity, the call will fail if passing RPC_C_IMP_LEVEL_NONE under certain conditions. Microsoft is working on a resolution and will provide an update in an upcoming release.
    Due to an issue with some versions of Anti-Virus software, this fix is only being made applicable to the machines where the Anti virus ISV has updated the ALLOW REGKEY. Contact your Anti-Virus AV to confirm that their software is compatible and have set the following REGKEY on the machine
    Key="HKEY_LOCAL_MACHINE"Subkey="SOFTWARE\Microsoft\Windows\CurrentVersion\QualityCompat"
    Value Name="cadca5fe-87d3-4b96-b7fb-a231484277cc"
    Type="REG_DWORD”
    Data="0x00000000”

    How to get this update

    This update will be downloaded and installed automatically from Windows Update. To get the standalone package for this update, go to the Microsoft Update Catalog website.


    Source: https://support.microsoft.com/en-us/help/4056890





    Direct download links for KB4056890 from Microsoft Update Catalog:

    Download KB4056890 MSU for Windows 10 Version 1607 32-bit (x86) - 630.8 MB

    Download KB4056890 MSU for Windows 10 Version 1607 64-bit (x64) - 1202.3 MB
    Last edited by Brink; 03 Jan 2018 at 19:42.
      My ComputersSystem Spec

  2.    05 Jan 2018 #1

    It seems odd but after this update the media streaming options were turned off, I had to turn it back on before
    I could access my media stored on the PC from my TV. First time I've seen this. Coincidence?

    Surprised to see this update on this date. Something important it had to be out of band?
      My ComputerSystem Spec

  3.   My ComputersSystem Spec

  4.    05 Jan 2018 #3

    I'm running an older AMD processor, the 4300 FX. It's unclear to me from what I've read
    whether I'm going to take a performance hit or not. The following quote implies that AMD is not affected.

    Thomas Lendacky, a member of the Linux OS group at AMD, posted the following over at LKML:
    AMD processors are not subject to the types of attacks that the kernel page table isolation feature protects against. The AMD microarchitecture does not allow memory references, including speculative references, that access higher privileged data when running in a lesser privileged mode when that access would result in a page fault.
      My ComputerSystem Spec


  5. Posts : 29,299
    64-bit Windows 10 Pro build 17672
    Thread Starter
       05 Jan 2018 #4

    You could run the PowerShell script from below to see what it reports to help be sure.

    Windows Client Guidance against speculative execution vulnerabilities - Windows 10 Forums
      My ComputersSystem Spec

  6.    05 Jan 2018 #5

    Brink said: View Post
    You could run the PowerShell script from below to see what it reports to help be sure.

    Windows Client Guidance against speculative execution vulnerabilities - Windows 10 Forums
    Interesting here's my output. It says hardware support is not available and Windows support is not enabled.
    Guess that makes sense. Do I have to now do something to "undo" anything powershell did ?
    I do have a system restore point set I did just prior to it's use.

    PS C:\Windows\system32> Set-ExecutionPolicy Unrestricted -Scope Process -Force
    PS C:\Windows\system32> Install-Module SpeculationControl -Force

    NuGet provider is required to continue
    PowerShellGet requires NuGet provider version '2.8.5.201' or newer to interact with NuGet-based repositories. The NuGet
    provider must be available in 'C:\Program Files\PackageManagement\ProviderAssemblies' or
    'C:\Users\davex\AppData\Local\PackageManagement\ProviderAssemblies'. You can also install the NuGet provider by running
    'Install-PackageProvider -Name NuGet -MinimumVersion 2.8.5.201 -Force'. Do you want PowerShellGet to install and
    import the NuGet provider now?
    [Y] Yes [N] No [S] Suspend [?] Help (default is "Y"): y
    PS C:\Windows\system32> Get-SpeculationControlSettings
    Speculation control settings for CVE-2017-5715 [branch target injection]

    Hardware support for branch target injection mitigation is present: False
    Windows OS support for branch target injection mitigation is present: True
    Windows OS support for branch target injection mitigation is enabled: False
    Windows OS support for branch target injection mitigation is disabled by system policy: False
    Windows OS support for branch target injection mitigation is disabled by absence of hardware support: True

    Speculation control settings for CVE-2017-5754 [rogue data cache load]

    Hardware requires kernel VA shadowing: False

    Suggested actions

    * Install BIOS/firmware update provided by your device OEM that enables hardware support for the branch target injectio
    n mitigation.
    * Follow the guidance for enabling Windows support for speculation control mitigations are described in https://support
    .microsoft.com/help/4072698


    BTIHardwarePresent : False
    BTIWindowsSupportPresent : True
    BTIWindowsSupportEnabled : False
    BTIDisabledBySystemPolicy : False
    BTIDisabledByNoHardwareSupport : True
    KVAShadowRequired : False
    KVAShadowWindowsSupportPresent : True
    KVAShadowWindowsSupportEnabled : False
    KVAShadowPcidEnabled : False



    PS C:\Windows\system32>
      My ComputerSystem Spec


  7. Posts : 29,299
    64-bit Windows 10 Pro build 17672
    Thread Starter
       05 Jan 2018 #6

    Nothing is needed to do to undo anything from the PowerShell script.
      My ComputersSystem Spec


  8. Posts : 13,344
    Windows 10 Pro
       06 Jan 2018 #7

    It seems this update has caused my desktop to behave very weird.

    Most of the time the start menu doesn't work, all programs from Windows take ages to open and when clicking on something a lot they all pop-up immediately and closing them is another pita.

    I restored Windows with my 2nd most recent backup.
      My ComputersSystem Spec


  • Posts : 1,927
    Windows 10 x86 14383 Insider Pro and Core 10240
       10 Jan 2018 #8

    Defer updates selected in settings + Wushowhide from before Jan CU failed to stop 1703 update being downloaded again, and now defer updates greyed out and unavailable. Wushowhide will not run now. Changed the Defer feature updates to enabled with Gpedit.msc.

    (when 1703 upgrade runs and installs, Network, Audio, USB, and all except the Generic graphics adapter drivers all fail to work, whilst having worked OK in 1607 - second computer in specs, very old and not worth bothering about, but still usable for general use.)
      My ComputersSystem Spec


  •  

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