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
    2018-01-16T16:58:28+00:00

    I have a new AMD Athlon II X4 620 processor and the update KB4056892 will not let me access a program I must use daily. I uninstalled the update and my computer is back to running perfectly. Also the update put a huge load on my CPU making it run at 75% utilization, many times 100% and made my NEW computer run SLOW. HEY MICROSOFT.. I will continue to uninstall KB4056892 until you fix it.. This is bull s#*%. Please stop updating my computer with this BAD update.

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  2. 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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  3. Anonymous
    2018-01-16T16:12:26+00:00

    Arrrg, yes it is a PITA boomerang. Hanging, unbootable Windows 10. Removed KB4056892 using dism, was able to boot again but did not disable Windows Updates because KB4073707 *claimed* to have paused the updates for affected AMD processors. And now... again crashing / hanging with unbootable Windows 10. This is AMD 5050e BTW. It’s just sad.

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  4. Anonymous
    2018-01-16T07:25:02+00:00

    The same thing is happening to me, except that I have an older Intel Core i7-2600K processor!

    After the update, my PC reports that the boot drive is inaccessible and then it gets stuck in a endless boot loop as Windows tries to repair it, but fails. The only way out is to restore to a point before the update!

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  5. Anonymous
    2018-01-15T17:32:08+00:00

    Hi LordGrimm66,

    I downloaded the file wushowhide as suggested by Gianni1962 (see earlier) and it has inhibited the specific update - no restart problems, so far.

    Worth a try ( I had 8 restart failures before this fix)

    Regards,

    Derek

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