Operating System Nightmare.

Built the computer, but the operating system says NO❌…

The photograph was taken of the author's own purchased copy of Windows O/S.

When I installed my new disk from its typically overwrapped packaging, off I embarked on the time-consuming action of installing my Microsoft Windows 10 Pro operating system, to my newly self-built desktop computer…

Well, lounging in a comfortable chair with a nice cup of hot coffee that is.