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
    2018-01-17T19:56:25+00:00

    Where do you see that?

    https://support.microsoft.com/en-us/help/4073290/unbootable-state-for-amd-devices-in-windows-10-version-1709

    This is what I see:

    "An update is available to fix the following issue that occurs after you install January 3, 2018—KB4056892 (OS Build 16299.192):

    AMD devices fall into an unbootable state.

    Update replacement information

    This update does not replace a previously released update."

    I am in a before KB4056892 state, not  "after you install" state.

    uhm is strange, now in Windows Update catalog it says that only replaces KB4051963.

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  2. Anonymous
    2018-01-17T19:10:39+00:00

    Looks like there is new news on this front.

    I went today to check status of the KB4056892 issue on this page:

    https://support.microsoft.com/en-us/help/4056892/windows-10-update-kb4056892

    Followed the new link to this page just added today, 1-17-18:

    https://support.microsoft.com/en-us/help/4073290/unbootable-state-for-amd-devices-in-windows-10-version-1709

    Says it is safe to unpause WU and install KB4056892 and then install KB4073290.

    I think I'll wait a few days, just to be sure the cure isn't as bad as the disease, ha ha.

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  3. Monkey57 3,535 Reputation points
    2018-01-16T16:25:26+00:00

    Maybe there is a Restore Point you can go to, if the device does not automatically recover.

    (Especially, after using a System Restore (Restore Point) or if the device Auto-rolls back):  see if you can catch the update with the Hide/Show troubleshooter , check 'Control Panel-Programs and Features->view installed updates' , see if it is there (uninstall if it shows there);  again, use dism /online /get-packages from within windows and see what is there..... or if unbootable try dism in the recovery environment see:

    Opteron185 replied on January 9, 2018 1/9/2018 8:11:49 PM (on page 18 of this same question)

    https://answers.microsoft.com/en-us/windows/forum/windows_10-update/after-installation-of-kb4056892-boot-failure-after/6c015632-2a45-4725-a882-f231f8c88f36?page=18#LastReply

    "...If you can boot into your recovery environment and open a command prompt, you can follow its instruction starting from step 3..."

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  4. Anonymous
    2018-01-15T16:18:46+00:00

    No problem to use that tool also in Windows 10 Home.

    But in any case that tool need to be downloaded!

    Download the "Show or hide updates" troubleshooter package now.

    How to temporarily prevent a Windows Update from reinstalling in Windows 10

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  5. Anonymous
    2018-01-14T16:19:58+00:00

    Try the advice from Monkey57 at Page 27 of this same thread.

    https://answers.microsoft.com/en-us/windows/forum/windows_10-update/after-installation-of-kb4056892-boot-failure-after/6c015632-2a45-4725-a882-f231f8c88f36?page=27&messageId=a115832d-7787-49ee-9539-00e635a8e0f4

    If the link does not work try to clear cookies for answers.microsoft.com

    Note that after cleaning cookies probably you will be prompted to reinsert your Microsoft credentials to post to the forum.

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