Registry Error - Windows Update - Error Code 0x80040154

hawkman said:

Thanks for the logs
Its telling me its trying to mount 10Pro, and that theres an activation failure.

Have a look at this MS article.

https://support.microsoft.com/en-us/...tivate-windows


Suspect a clean install will still have the same error


Roy

That doesn't surprise me seeing she has W10 Home installed....see post #29
If she clean installs W10 Home ISO all will go well.

Your correct,
She must have picked the wrong ISO on a clean install.
Thats WHY logs are handy.
Seen enough of them on Seven.

Roy

,

DISM log is showing as running a Pro repair.
Im assuming its trying that because of your product key.
run this tool
https://github.com/Superfly-Inc/Show...howKeyPlus.zip

It will tell you whats on your system
DO NOT POST YOUR PRODUCT KEY

then read this sticky for an explanation
ShowKeyPlus

Roy

Hi Kaltland,
Whats showing when you do check product key part.

Roy

@kaltland

Glad you're fixed...as you say "for now" :).

Odd, it seemed to go full circle back to this, a possible botched MS update... Registry Error - Windows Update - Error Code 0x80040154


Make a good image backup of your system. Like Mike suggested, Macrium is an excellent choice.