Win 10 Upgrade problems

We have about 115 Digital Signage Players that is running Windows 10 1609 14393.5786 and we would like to do an inplace upgrade to Win10_LTSC_2021x64. The hardware on every machine is about the same 26GB free space on C: before upgrade 4GB RAM i5 3GHz. ALL of the machines are running only what is needed to run the OS, anything else has been removed. And this machine is only logged onto by the user we created and no one ever logs onto it with another user expect when preforming service. The only other software we have installed and running the is the TV Signage player (Axis TV). All drivers have been updated. I know the best process is to do a clean install, however we have certain modifications to the OS such as registry customization, power options which we would like to keep, a clean install would change all of that.

However when we preform a in place upgrade with the option to keep files and settings about 53% into the upgrade it fails with the message Windows upgrade installation has failed, so I followed all the directions on this page https://learn.microsoft.com/en-us/wi...upgrade-errors and error I got back is this :Failed to get the provider DISM Package Manager from the remote provider store. - CProxyProviderStore::GetProvider(hr:0x80004005)"

I followed different directions on how to correct that but nothing I found worked. So I did another in place upgrade this time selecting to keep files but to delete all applications and settings. The upgrade completed. The only changes we made to the system was, in the registry we had the system auto login and for our Axis TV Player to play automatically. However when I was running the upgrade I was running as another user and the system never rebooted during the Downlevel phase, it would crash 100% here when I selected keep apps and files. We deleted all the power plans and added our own all other changes were you basic control panel modifications to default settings.

We ran the installer off a USB that has an ISO , I thought about using the Windows Media Creation tool to see if that did anything different but I was not sure with that if we can do an inplace upgrade using Win 10 21H2 LTSC. I also had some DISM errors but I repaired those. We did have the SCCM client on this machine via GPO, but I made a GPO to do a mass removal but that policy did not run until hours after I started the install So I dobut that matters.

So with that said we would like to do an in place upgrade and keeping all the settings and apps we have installed. Based on what I have told you and what I have done and anything further you would like me to do, do you think its possible?

If your talking about Windows Updates then all of those have been installed

I see, we will try that if we can get a copy of that version. Thanks

It will upgrade I just have to choose to delete all files/apps and settings we made. If I select keep aps/files and settings it fails with the Failed to get the provider DISM Package Manager from the remote provider store. So I am not sure if any customization we did to the OS or the software (Axis TV) is causing the upgrade to fail.

I will try it out and see if I can get a hold of Microsoft. Thanks. I will report back when we figure it out.