Kapil Arya, MVP Volunteer Moderator
Microsoft MVP (Windows IT Pro), since 2014 · Windows Insider MVP, since 2016 · Windows Help (**www.kapilarya.com**)
wrote on Nov 26 ON THE SAME TOPIC PROBLEM in another discussion on this forum:
“Try upgrading via Windows 11 24H2 ISO file:
https://www.kapilarya.com/how-to-upgrade-to-windows-11-version-24h2#method-2-upgrade-to-24h2-from-iso-file
Note: Included link in this reply refers to blog post by a trusted Microsoft MVP.”
**That link above explains all 4 different installation (update) options VERY WELL.**🤔👍
It's step 7, not right now is the one to take if using the ISO. If you do take the updates that will be slow and introduce potential driver issues. Let the end point do the updates or tinker with the drivers outside of this. There are free library driver programs or you go to the manufacturer website.
Why it's important to see the Microsoft error code to determine which stage it's going wrong and to read the log files. How to read those log files can be found online. Those are put in different places on the drive subject to the error. Then there are summary tools.
The experts like to read those log files since they do point to issues. Question is whether there are the number of experts out there to debug all failed updates... we'll see, why you are told not to attempt the update untill you are officially offered it. That's Microsoft’s view.
I'd got to the stage where it was OK for me to use the ISO files since it started offering me the update through the update channel. Mind you by then I'd tinkered with the drivers and found the duff one which produced the failed first boot which was suppose to be an update. No don't update that driver. It was memory integrity on the 70% plus boot it was failing at, different. That Microsoft tool was the answer (Google it). My belief some people reading reports turn off the security to bypass the memory integrity check than rather sorting out the drivers that are failing memory integrity since they say, I don't know whether it worked due to that or not...
So my message from all of this is take a copy of your drivers before you start. Don't go updating the drivers on mass since that can cause more issues than solve. Beware of the Microsoft error code the ISO file gives you, but dont take the default route, use change the default so it doesnt. Use the Microsoft memory integrity tool that finds incompatible drivers that fail the final upgrade, 70% if it stops at that. Your issue may not be that, it was mine. Don't forget to ditch all non Microsoft anti virus programs before you start this.
Best of luck. Personally for the difficult equipment I can't see Microsoft finding a solution due to the way 24h2 update is engineered unless they have another suite of fix it programs they haven't released yet. Currently it's inspection of log files, Farbar and the memory integrity tool. Lot of witchcraft out there that doesn't work on the 24h2 update and you get use to reading it and going round in circles on these so called easy fixes.