If you or someone with access to the pc did not set up this password, then the pc is not new. I set one up on my first Dell, and even after resetting to factory settings, it still required a password. You will need to have a dell technician reset it for you. That is the what I had to do. Someone else may have another suggestion, but I have owned 2 Dell and have dealt with the system and HDD passwords. Good luck to you...
When I boot up my deal laptop, I get a screen that says "this computer system, is protected by a password authentication send system you cannot access the data on this computer without the correct password please type in the system or administrative password and press enter. I have never set up a password on this computer.
My Inspiron 1545 asking for a password I never set up