Not that I noticed. There were several reboots with usual "applying updates don't turn off machine". IIRC one went to 30% then rebooted. The next time it went to 100% and eventually to login screen. ( Note that I stopped the procmon logging before the first restart ).
Also Update history is showing KB4512506 as successfull.
It would appear yes. The update is no longer on the update list and history says success.
Is there something in the logs that indicates failure to configure the updates?
Really appreciate the help. Don't have thanks enough!
A final question if I may: Is there something/anything I can/should be doing to prevent corruption in the future or is it a case of "..sometimes things glitch"?