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
    2018-01-07T02:59:53+00:00

    Well yes, KB4056892 appears to be a bit of a trouble maker.......

    So far we have "Bricked" an AMD Athlon 64 X2 6000+, Asus M3A78-V3, Win 10 Home (32bit).  Dies during boot with no animation.

    System repair cannot fix the problem.

    After a system refresh the system will boot and appears functional.

    I have NOT attempted service/recreate at this time.

    Odd as it might sound the AMD 6000+ may be the lesser problem.

    AMD FX 8150, ASUS M5A97, Win 10 Pro (64Bit).  AI Suit II has stopped working.

    Amongst other functions AI Suit can customize fan speeds.

    Fortunately there are Fan Advance tables in BIOS .  Fan/Tempura relationship set to "Turbo"

    Open Hardware Monitor correctly reporting temp, fan speeds and clocking.

    I'm not ready to investigate if Speedfan will crash the device just yet.

    Now a nice thing about most newer ASUS MBs is there are fan advance tables in BIOS.

    What is better is that if you select injudicious settings all fans will default to full speed.

    A real concern would be if some CPU/MB combination defaults to LOWEST speed if the OS can no longer control fan speed.  Here after the CPU MELTDOWN the new CPU/MB combination may not be susceptible to Meltdown.

    So much for AMD/ASUS combinations (at least the ones suffering KB4056892).  Nothing else is getting powered on for the time being.

    I will append/open other threads as I discover more information.

    PS.

    Jaroslav, The X2 6000+ may be a relic however it still makes a wonderful signal generator, DVD/CD Burner and general all around "grunt" work machine.

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  2. Anonymous
    2018-01-07T03:13:30+00:00

    Same issue.  Love it when Microsoft creates more problems with updates.

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  3. Anonymous
    2018-01-07T03:51:39+00:00

    Same problem on an older Athlon X2.

    On startup I pressed f8 while booting and it would automatically roll back the update.... then promptly try to reinstall the update and back to square one.

    Only temporary fix to this is to either disable or defer the updates. I haven't tried disabling virtualization as I actually need that for virtualbox. I guess I could always reverse my usage. Put linux on this machine, and put Windows 10 in a virtual machine :P.

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  4. Anonymous
    2018-01-07T05:59:05+00:00

    I too have the same issue. 

    My kids computer was a perfectly running Athlon X2 5000+ Brisbane.

    Windows 10 Pro. Hangs after reboot when update is applied. 

    For now just pausing updates.

    Hope they update the code for AMD cpus in update.

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  5. Anonymous
    2018-01-07T07:41:29+00:00

    I just want to add that i have the same problem on my Athlon X2 4850e. First the update was installed automatically and my system was frozen during boot. Only option to recover: Reset with keeping private data.

    At this point i did not know that KB4056892 was responsible for the problem. My CPU load was extremely high due to windows update module installer. Then I saw in the Windows Update dialog that the windows update is stuck at 99%. Next step, I used the workaround to download the update manually to get it installed. After that I was back at my frozen boot screen problem!!!

    So i guess my next step is again to reset the pc and disable the automatic updates. But for how long?

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