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
    2018-01-09T05:52:06+00:00

    Official Microsoft response about the issue: https://support.microsoft.com/help/4073707/

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  2. Anonymous
    2018-01-06T03:36:02+00:00

    ... windows update keeps insisting on installing this update, if i want to get other updates and there seems no way to block this update. 

    Did you already tried this Microsoft tool "Show or hide updates" troubleshooter ?

    How to temporarily prevent a driver update from reinstalling in Windows 10

    "[the tool / troubleshooter] provides a user interface to hide and show Windows updates and drivers for Windows 10."

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  3. Anonymous
    2018-01-05T17:14:54+00:00

    Thanks for info, I will try another AMD Athlon machine later today. This issue is very painful especially in production. Luckily, it usually roll-backs the update after several (IIRC two) unsuccessful boot attempts. MS QA is getting worse and worse. Anecdotally I could probably live without this buzzword update because my AMD doesn't seem vulnerable to the Meltdown and the Spectre mitigations it's bringing don't help much.

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  4. Anonymous
    2018-01-05T21:11:32+00:00

    my machines affected are AMD Athlon 64 X2 too, and with Windows Defender only, so this means the update broken some compatibility with AMD CPUs ? :S

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  5. Anonymous
    2018-01-06T12:40:40+00:00

    This is an excellent example that the current trend about removing possibility to control/configure your own machine e.g. removing the option to just disable the automatic updates is terribly wrong.

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