Hi ton62
When you get that message, try restarting a few times to see if you will let you setup a proper account.
If not, do the following at the sign in screen.
Hold down the shift key on your keyboard while clicking the Power button on the screen.
Continue to hold down the shift key while clicking Restart.
Continue to hold down the shift key until the Advanced Recovery Options menu appears.
Click Troubleshoot
Click Reset this PC
Click Remove Everything
Fully clean the drive
Click Reset
https://www.groovypost.com/howto/setup-configur...
Information in the above link is sourced from a trusted Microsoft MVP blog.