After installation of KB4056892 boot failure, after roll-back error 0x800f0845

Anonymous
2018-01-04T22:13:27+00:00

Hi,

I have older AMD Athlon 64 X2 6000+, Asus MB, after installation of KB4056892 the system doesn't boot, it only shows the Windows logo without animation and nothing more. After several failed boots it do roll-back then it shows error 0x800f0845. Unfortunately, it seems it's not easy to disable the automatic updates without gpedit tweaks, so it tries installing and rolling-back the update over and over. The sfc /scannow shows no problem, in-place upgrade also doesn't seem to help. I can try full reinstall, but I doubt it will change anything. It seems like the update is binary incompatible with my old CPU. I understand that making the machine unbootable is the best protection from remote exploitation, but I would rather have the OS working. Especially if my CPU is not vulnerable to the Meltdown attack and the MS mitigation attempts for Spectre is more than questionable. I could find only some German and Italian people reporting the same issue (well the CPU is quite pre-historic and the KB update is very fresh), but no info / acknowledgment from the MS so far. I have Czech localization. Could anybody provide more information?

Windows for home | Windows 10 | Windows update

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  1. Anonymous
    2018-01-11T03:34:37+00:00

    Today I got another KB4056892 update and it is pending a instal.  The known issues states they are not sending them for systems with AMD CPU's.

    How to exclude the Update:

    • If possible in your Windows 10 version, set your connection as "metererd", this will stop automatic download of updates
    • use the Hide/Show troubleshooter to hide the Update
    • if the Update is not "waiting for restart" in Windows Update, you can restart the pc now
    • if instead the Update is in the "waiting for restart" state, it is already listed in the uninstallable updates so you can uninstall it How to Uninstall a Windows Update in Windows 10 and then restart your pc
    • wait some minutes and then check Windows Update to verify that the Update is now ignored
    • reset your connection to not metered

    Tested on Windows 10 Fall Creators Update Home and Pro.

    Thanks 

    Did it and will wait ti see if it works.

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  2. Anonymous
    2018-01-11T03:14:16+00:00

    It's only a surmise but maybe your machine had already been flagged for the update prior to the withdrawal of KB4056892 for affected AMD systems. The exact timing of the withdrawal is not stated.

    In my experience its not really a big problem, after three failed boots the update was auto-reverted and my machine was again usable, as before.

    Then, I took two actions to suspend it. Firstly I logged in as admin, and changed the Windows Update 'Advanced Options', to pause updates for 35 days. This is only available on 'Pro' or better. I also used 'wushowhide.diagcab', to remove KB4056892 from the queued update list.

    I've not tested it, but folk on 'Home', may find the second option is sufficient on its own.

    It did not try to install the update this morning when I turned on my computer. It think it happens yesterday because their were other updates pending.

    This the one awaiting restart.

    Installed updates is a mess. Note it shows the bad update installed and restart a restart to finish installing it. That is the 6th time it tried installing. I think the one that says installed should be uninstalled since I had a uninstall pending restart.

    Another one that installed yesterday.

    I don't think I can uninstall the available update but can uninstall the one shown installed and the one not finished.

    Not sure how to use "'wushowhide.diagcab". Tryed command promt but it failed to run. Not that famililar with doing such commands. 

    Thankis for the help

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  3. Anonymous
    2018-01-11T01:20:43+00:00

    My last successful update was KB4058702. 

    KB4056892 also failed to update in my laptop after multiple tries of updates, installs and restarts. I am using a multiple boot system that I have to pick OS on startup. I use a Dell Precision M2800, 64-bit, i7-4810MQ CPU, 16GB RAM, Win 10 Pro.

    Because KB4056892 failed to update on multiple retries, my laptop becomes very slow to a point it's unusable (although it managed to boot). I am disabling windows update services until there is a resolution and using my previous stable restore point.

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