I have tried everything and still no success!
I fail to see how Microsoft or those purporting to assist them are not able to investigate the source code and find out what the software is actually trying to do when it fails, but that's Microsoft for you.
Given that it is impossible to permanently disable an update (even one that clearly does not work) I have now had to set this to their maximum 35 days to avoid extended shutdown and boots while it repeatedly tries to install then immediately uninstalls. In accordance with Microsoft policy, when they report 100% they actually mean something else as this meaningless figure only applies to Microsoft and not he rest of the planet!
I am reminded of a similar thing when Win98 changed to XP, when XP changed to 7, when 7 changed to 10, and now when 10 changed to 11. Each time, because it wouldn't update I had to install from new every time and reinstall all my software. I suspect this is another Microsoft ploy to ensure everyone changes to 11, by forcing you to do it. As after each new install with the same hardware and configuration the updates included in the new software work without a problem so it cannot possibly be hardware related.
I can see no reason why a clean 10 install with nothing else added or changed would fail to install this update too, but you may have already guessed that Win 11 installs from a fresh iso including this update.
I am now using Linux with the bare essentials that require Windows working in virtual environment with no updates and therefore no more dodgy MIcrosoft.
Once Google get a rival system working then Microsoft are truly screwed. It's only a matter of time!