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
    2018-01-11T22:52:26+00:00

    Any thoughts on why my system keeps getting KB4056892 which prevents reboot???

    maybe due an issue in your Windows Update files/folders/cache, try use my tool to fix that: http://www43.zippyshare.com/v/lHvugfmc/file.html Run as Admin.

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  2. Anonymous
    2018-01-11T17:24:18+00:00

    I just performed a new win-update, and the KB4056892 seems to be removed from update. PC restarted without any problems. I´ve had windows update on pause since problem with AMD processor occured.

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  3. Sumit 44,316 Reputation points Volunteer Moderator
    2018-01-11T16:47:55+00:00

    And hope your machine remains stable, after it gets itself together/caught-up, after being off for a bit.

    Haha.. I hope so too. The suggestions proposed by Gianni1962 are perfect.

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  4. Sumit 44,316 Reputation points Volunteer Moderator
    2018-01-11T16:45:29+00:00

    Even after the updates reset, if the update somehow sneaks in, the best way would be to use the troubleshooter tool. 

    I hate to advise this, but I had to suggest some of those affected to temporarily disable the Windows update service until this mess is fixed-prefarably some days at least. But I hope that would not be required for you and others.

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  5. Monkey57 3,535 Reputation points
    2018-01-11T16:40:08+00:00

    Thank you Sumit,

    in the meantime, I am having to consider uninstalling the KB4056892 update on older Intel processored machines, if the user complains apps have not run right, recently (i.e. when running search/find functions within their long running Business specific programs they go outside for 5 min after initiating a search request).

    I Don't think a complete reset of Windows Updates is necessary, nor do i think it would help in this situation, although I would probably start with a Disk Cleanup, before running a script which I would get here, if there was evidence it was beneficial in this situation.  And not sure why the first step in your Linked website's 'Initial Instructions' is to download a PUP, please consider better ad placement on YOUR website.

    Gianni1962 has had the best suggestions (IMO) (thank you sir):

    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

    AND

    My (Gianni1962) approach is to wait for the resolution, if any will come.

    In the meantime I have Hidden the update in the pc at risk.

    Deactivating the Virtualization support in the BIOS, on some pc has permitted a normal boot.

    After you have managed to successfully Hide the update, you can reactivate it.

    As the MS Bulletin is  Last Updated: 08-Jan-2018, and I have seen machine reset 2 days after the 8th, my confidence is low in that released statement.

    And hope your machine remains stable, after it gets itself together/caught-up, after being off for a bit.

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