DISM 0x800f081f; source files could not be found

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Hammy Havoc

Hi all,


I've been having issues with getting DISM to successfully run the following:


DISM /Online /Cleanup-Image /RestoreHealth


When I do, it gives me a 0x800f081f; source files could not be found.


Part of my problem is that I'm on image version 10.0.19041.508 (Windows 10 Pro for Workstations), this particular build of course isn't available as an installation media/ISO from the Microsoft website.


To my (admittedly quite limited) knowledge of DISM, the build number and language need to match, thus that's a problem for using /Source.


With that said, I found advice elsewhere on the internet that recommended using Get Windows 10 Version 20H2 (19042.508) ISO • Quickfever to build my own ISO from the UUP (Unified Update Platform). I ran that, script completed successfully, ISO file generated, attempted to mount that using this:


DISM /Online /Cleanup-Image /RestoreHealth /Source:wim:I:\sources\install.wim:6 /LimitAccess


So the ISO generated for my build didn't work.


Keeping in mind that DISM is apparently case sensitive, so made sure that the path was a match. No luck with that either; still can't find the sources files in the source specified. I used :6 as I ran this:


DISM /Get-ImageInfo /imagefile:I:\sources\install.wim


And 6 was down as being Windows 10 Pro for Workstations.



I've tried upgrading to an Insider build via an ISO (can't join it via Settings as I get a "Something went wrong; We aren't able to talk to our service right now. Please try again later." error) and that fails to install and after it restarts mid-install, Windows undoes the changes made to the computer and I end up back on the current 19041.508 build.


I've tried the usual 'Startup repair', safe mode etc. No luck there either. Whilst I have backups, all of the ones I've tried to recover from all seem to have this problem. Unfortunately, reinstallation isn't really an option as there's so many programs that would need to be reinstalled with lengthy installation times.


If anybody has any further ideas, I'd be very happy to hear about them.

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