https://learn.microsoft.com/en-us/windows-hardware/manufacture/desktop/dism-windows-edition-servicing-command-line-options?view=windows-10#set-edition https://l

https://learn.microsoft.com/en-us/windows-hardware/manufacture/desktop/dism-windows-edition-servicing-command-line-options?view=windows-10#set-edition https://learn.microsoft.com/en-us/windows-hardware/manufactu... a DDG search of "$most_popular_git_hosting_site $the_os_you_want product keys" offers some answers. I managed to use DISM to in-place upgrade a Windows 7 install to Win10. The standard way to upgrade (using the setup GUI) failed, and the command failed at first but out of the logs I managed to figure out what patches I had to install to allow the DISM upgrade to succeed.