When you are done with the brand new installation of Hyper-V Server you would need to press Ctrl+Alt+Del to log in to the server and then you need a username and the password which was never been asked to you during a tradional windows instalaltion, so what to do now.??? Simple , yes just enter the username “administrator” and then hit the Enter key, then it will prompt you to put a “new password” and “confirm password”.