or Cancel without entering a password.
If this is the systems own Administrator and not one you have set up, it probably does not yet have a password set.
I did a reformat and reload of windows. I did have a few error messages but I thought that the installation was successful. At the end of the installation windows restarted itself. Now it prompts me for an administrator password that I did not set up and do not know. I have tried to reboot multiple ways and even booting in safe mode gives me this mesage. What do I need to do?