a DDG search of "$most_popular_git_hosting_site $the_os_you_want product keys" offers some answers.
I managed to use DISM to in-place upgrade a Windows 7 install to Win10. The standard way to upgrade (using the setup GUI) failed, and the command failed at first but out of the logs I managed to figure out what patches I had to install to allow the DISM upgrade to succeed.
a DDG search of "$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.