If you haven’t yet done so, you’ll need to install the hard drive before proceeding.

You may receive a prompt at the bottom of the screen right before the startup screen that says “Press [key] to enter setup” or something similar. If you miss the BIOS window, you’ll need to restart your computer and try again. Consult your computer’s manual or online documentation to determine the BIOS key for your model of computer.

If you don’t remember your BIOS password, you may be able to reset it.

In some cases, you may have to select None to the right of the hard drive’s name before pressing the “Configure” key. You can also set this drive to “Auto” instead to allow your operating system to select “Master” for it.

If you chose “Auto” for the first drive, you’ll instead set the second hard drive to “Auto” as well.

In some cases, you may have to press another key after saving to confirm that you want to save and exit.