Use the normal safe mode with F8 on your keyboard, hope you know how to set this up. It works flawless for me here
Sure I know how to do but never had this problem, surely a bug with this build. With Win 11 25h2 build 26220.6780 I had no issue.
when i have problems with installing windows updates what i do is to use a windows iso or the Fix Problems Using Windows Update feature so it does a inplace upgrade
For most users that is ok to do, but sometimes it is better to know the cause, but that needs proper info from the person who is having problems. I can't remember when i had problems with installing updates outside of the dev and beta channels.
In Japan, there is a proverb that says, "Praying to a horse's ear" It means something like, "Like water off a duck's back."