Thank you for the detailed account of your experience that is interesting and helpful. My own experience is somewhat different – not unusual where MS is concerned! It might be helpful to others if I recount this.
Back on 25 February 2018 I made a backup of my Win10 Pro system and recovered this to a spare HDD. This was to prove my backup and recovery regime.
I used this spare HDD system drive rather than my normal SSD system drive in case of further problems arising from my attempts to overcome the 0x80070bc2 error.
Although the HDD should have been an exact copy of the SSD I was surprised to find that - Settings | Update & Security | View installed update history - showed a completely blank history although the SSD system had 0x80070bc2 errors from weeks ago!
The scan for available updates returned with Cumulative Update for Windows 10 Version 1709 for x64 based systems KB4090913 instead of the usual KB4056892
!!
I proceeded to install this using the commands advised by DevonBasson – (to whom, many thanks)
SC config wuauserv start= auto
SC config bits start= auto
SC config cryptsvc start= auto
SC config trustedinstaller start= auto
(Note for those too young to know DOSKEY which is now built in to the command line entry facility – the UP arrow cursor key restores the previous command line entry that can then be edited. This can save quite a lot of typing.)
The installation proceeded very much as IranMach1’s experience with numerous cycles of updating and restarting.
Eventually KB4090913 installed – Control Panel | Programs and Features | View installed updates – confirms that this update was installed on 06/03/2018.
However if I look in - Settings | Update & Security | View installed update history – it says that Cumulative Update for Windows 10 Version 1709 for x64 based systems KB4090913
failed to install with error 0x80070bc2 Consequently it needs to install again!
How can I convince Windows that the installation does not need to be repeated?
Next I shall recover the system backup to my HDD again and repeat the exercise, observing carefully throughout. I am not going to “touch” my SSD until I have a reliable updating methodology.
Has anyone else come across
KB4090913 ? How does it differ from KB4056892 ?