Before I was able to try NTPASS the neighbor paid a local shop to role his PC back to Windows 7.
I think Microsoft has made a serious error in the Windows 10 upgrade.
1. The admin password should...

Tried that but it requires a login to do it

A elderly neighbor allowed the Windows 10 upgrade from a Windows 7 machine.
After the upgrade all seemed ok until a restart.
Apparently the original user account was set not to require a login and...