Repair install/in-place upgrade not proceeding normally

What happens when you go to ms-settings:regionlanguage? What do you see, what happens when you add/remove/change things?

Using the ISO from Download Windows 10 ISO File - TenForumsTutorials [Option 1], then running the Repair install from there using Repair Install Windows 10 with an In-place Upgrade - TenForumsTutorials [Step 4 - using an ISO file] I've described above, but now I see that it's giving me an older version than I have (or at least Windows thinks it has, after the update SNAFU).
After discovering this, I went to Option 5 (TechBench by WZT), it says it has even a 19043. Downloading that now.
Aw, that's why
Never mind, then ^^

Try3 said:

ms-settings:regionlanguage = Settings, Time & language, Language

(I couldn't get the link to work on tenforums, choosing "<other>" as protocol, it changes the link to https://www.tenforums.com/regionlanguage. )

Try3 said:

I'm getting concerned that this language issue is distracting from the core problem. I have never suffered any ill-effects when performing Repair installs and our dism /online /get-intl language properties are so similar that I do not think it is anything to do with your problem.

Already disregarded.

Try3 said:

ms-settings:regionlanguage is something that you enter in, for example, the Run dialog [right click on the Start button then select Run].
Or get to the same place using Settings, Time & language, Language
In both cases, these are actions carried out in Windows and are nothing to do with TenForums.

You can use the ms-settings: Protocol in HTML a hrefs, see for example Windows 10 Settings Links Launch List Guide - Tenop IT Solutions
But tenforums's link embedding system butchers these links, as described above.

Try3 said:

I did not understand what you were saying in [...] and assumed that your next update would clarify matters. I think your WZT ISO download will have completed by now so you'll have a Version 21H1 ISO file to use.

When I wrote the above, I hadn't seen your explanation about current versions all being based on the 19041 kernel, not indicating final build versions.
For transparency, and because I don't know how to completely delete a post, I left it in as strikethrough text, superseding it with "never mind", when I learned that my initial understanding was wrong.

The new ISO sadly brought nothing new to the table.

- - - Updated - - -

PS: I was only asking about your language issue because you said you'd never gotten it resolved, and I was wondering at what point/how corrective measures failed, but you probably talked to enough people about it by this point. Sorry if that caused more confusion ^^

@Brink - Please move posts #1273 onwards into a new thread called something like Repair install/in-place upgrade not proceeding normally

Try3 said:

0 Can we take that as a new starting point then?

Okay, sure thing

Try3 said:

1 Your ISO is Version 21H1 and you downloaded it using TechBench WZT [Option 5 of Download Windows 10 ISO File - TenForumsTutorials]?

Yes.

Try3 said:

2 If you double-click on it, it 'mounts' as a virtual DVD drive?

Yes. Although, coming to think of it, I'm using WinCDEmu to do that, which I installed at some point in the past and have been using ever since. TBH, I missed the memo that Win 10 can mount disc images natively now. Look at our OS, doing things on its own; it's growing up. I'm so proud!
Let me see if uninstalling WinCDEmu and mounting it "natively" changes anything.
-> No, still starting a full fat fresh installation.

Try3 said:

3 Have you tested the ISO file structure's integrity?
- Copy the …\sources\install.wim or …\sources\install.esd file somewhere else [anywhere else that's big enough & for which you have access].
- If there is a copy error [… cannot find file …] then the file has been corrupted during download.
- You can delete the copy afterwards. It was only a by-product of the test.

I did unpack one or two of the ISOs at some point, in a desperate clutching at straws, with no errors.
Now I copied the .wim as a sanity check: Also no errors (would have been quite unlikely, that all the images I downloaded would have damaged install images which all reported no error beyond the observed misbehavior, but now we know)

Try3 said:

4 If you are logged in to an Admin account and you double-click on its setup.exe, you get the responses stated in Repair Install Windows 10 with an In-place Upgrade - TenForumsTutorials [Steps 1,2,3,4,7+]?
- There is nothing documented to suggest that using the Built-in admin for a Repair install will cause problems but it should not be used for the job because failures would be impossible to diagnose.

My user account is an administrator account, if that's what you mean; I am not using the built-in Admin account.
My experience diverges at step 7: instead of a small splash screen, I get the full-screen borderless window on top as pictured here
Are you saying I should try using the built-in Admin account?

Try3 said:

- In any response about problems, please be specific about steps done successfully & steps producing errors or we'll be here all day.

I'm doing my best, I mostly didn't know what else to add.
I didn't know how un-straight-forward my problem seems to be.

Thank you for all your time and patience!