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
    2018-01-07T01:46:38+00:00

    Same here AMD Athlon X2 L310

    Restarting computer goes to update screen until 30% and reboots again (normal thing for windows updates) and then the windows flags without the animated dots. Must power off. Start again and get widows flags without animated dots. Must power off (2nd time). Start again and thankfully it starts recovery and 15 minutes later it is back to normal. But the update is waiting in windows update for a restart - DON'T DO IT as it will do the same thing again. For now the only thing to stop the crap is to hibernate.

    Microsoft support was  USELESS. They started attempting to do an update via ISO.

    It will be hibernate until they get their act together.

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  2. Anonymous
    2018-01-06T16:32:47+00:00

    Same issue with an AMD Turion x2 dual-core mobile rm-72 and Win 10 Pro 64 bits. I´m also only using windows defender.

    off topic.

    why so many users have athlon and me the only with turion?

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  3. Anonymous
    2018-01-05T23:47:04+00:00

    I have the same issues with a ten years old AMD Athlon X2 64! When I try to reboot, it it does not hang it tries to roll-back (in italian "ripristino") but then it cocludes it cannot roll-back and proposes Advanced Options (AO). 

    Can I try to recover from DOS box in AO? or should I try only to reinstall Windows saving the personal data? or what else?

    I have a lot of software there (MSYS2+MINGW32/64, WSL aka Ubuntu on Windows etc., and reinstalling fro scratch would be very annoying... and maybe that would not be enough because Windows would try to reinstall this Dangerous upgrade!

    Ciao,

     Angelo.

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  4. Anonymous
    2018-01-05T23:45:55+00:00

    yes, because maybe you have Virtualization or HPET disabled in BIOS, otherwise it cause Windows to stuck in Windows logo.

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  5. Anonymous
    2018-01-05T21:33:58+00:00

    I find that having a boot menu to break up the auto restarts helps clarify when stuff has gone wrong.  Also it gives the possibility of looking at things earlier than would be possible otherwise. 

    bcdedit  /set  {bootmgr}  DisplayBootMenu  "yes"

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