Your ERROR 0x80070422 is the same as mine. I tried fixing this error code according to every google search possible and failed repeatedly. (Trouble shoot fix, Clean reboot, Safe Mode fix, everything but failed.)
I tried "retry" update like you did, I guess 100 times retry, again, nothing worked.
As a week went by not using the computer I turned it on again and updates was installed already and I could play microsoft games again.
As I told you windows 10 horror is the mystery, at least to me.