Again, with all due respect, no one should have to do that. All these backward, mystery solving, multi stepped processes only prove that Microsoft and its update are useless. Do this, then do that, then take this, then take that, now do this etc. No. Microsoft has caused unknown damage to millions of computers with no explanation and surely no help. They must be held accountable. It is completely unacceptable to attempt to fix their update. If it was not ready, it should not have been released. It’s a marketing ploy to get people to buy new systems. Inexcusable.
Windows 11 Installation Assistant
I would like to emphasize that this has been for a long time (years) one of the three official installation methods recommended by Microsoft!
Well if you misuse the ISO method and do the "recommended" it updates the drivers then and there and the motto is don't upgrade drivers if your system is working fine. That needs changing to you might need to, but if you do duff drivers may bring you down on the first boot.
Problem with the Windows installation assistant is that it's a slower process than using the ISO. You don't get the error codes out of it but neither with the official Microsoft invite. The two are basically the same. The ISO pulls down the update whilst the variation on the ISO stops you having to answer that language question. Got well versed in this, in that nine week period.
Best to take the official invite if offered. Failing that the installation assistant, if that fails try the ISO for the error code. Then you are in too the logs and Farbar or whatever its called. That identifies non Microsoft anti virus programs. Get rid of them. At that stage knew it was a driver issue and the question of which one. That's when I found that Microsoft utility which pinpointed it.