Start the install over from scratch. You can have wifi enabled when installing. Just don't plug in a network cable and don't connect to a wifi network when it p

Start the install over from scratch. You can have wifi enabled when installing. Just don't plug in a network cable and don't connect to a wifi network when it prompts you to. Read carefully, you can avoid connecting and if you do you don't connect, you don't have to use a Microsoft account.