"I thought that you were suggesting that I used the word 'Administrator' as the password."
No, I was suggesting that you use the name 'administrator' as the username. That's why, in each of my posts I was careful to specify "as the username" (this is also known as the account name).
A login consists of two parts, the username and the password. The administrator user account is not offered and can be typed in manually in safe mode or when the Welcome screen option is turned off.
In each of these cases Windows will remember the last user who logged on and display their name and ask for a password. At that point you can change the name to administrator. If (and only if) the machine was set up without an password for the administrator account, at that point you will be able to log in as the administrator.