Windows upgrades fails

Question

Last upgrade KB5065426 succeeded on 16.9.2025. After that beginning 19.10. bouth upgrades KB5066128 and KB5066835 ended to errormessages. Running sfc /scannow and DISM doesn't help. My Windows is W 11 Pro, vers 25H2, feature pack 1000.26100.2340, I have service agreement through Elomatic Oy

Answer 1

If all is resolved, feel free to mark the answer for this thread. Otherwise, please let me know if there's anything else I can help you with.

see you next time in ms community

Elvis

Answer 2

hi ari, welcome in community

what is the exact error message about the KB mentioned? can you share the code or a screenshot?

meanwhile, try to reset completely windows update, proceed in this way, press the WIN + X buttons and open terminal (admin), now type

net stop bits

net stop wuauserv

net stop cryptsvc

ren %systemroot%\System32\Catroot2 oldcatroot2

net start cryptsvc

del /f /q %windir%\WindowsUpdate.log

del /f /s /q %windir%\SoftwareDistribution\*.*

Del "%ALLUSERSPROFILE%ApplicationDataMicrosoftNetworkDownloaderqmgr*.dat"

del %systemroot%\SoftwareDistribution\DataStore\Logs\edb.log

net start bits

net start wuauserv

after each command press enter

if you want you can create a text file from notepad, save it as All files type and give it a .bat extension

then run it as administrator

after doing so, try again with the updates

let me know

Elvis