Allready in the BIOS we go to Security -> Device Security
When we click, a window will appear, then we're going to put on hidden mode all the Sata and press F10
Before continue I recommend to go to File and Save Changes and Exit and then return to the BIOS to see if everything went well. Then, at the same place where Save Changes and Exitis, we click in Default Setup and save again.
In the BIOS again we return to Security -> Device Security and we put on available all the Sata if they're on hidden and Save Changes and Exit to finish the removal of the HDD password.