"Windows Cannot Read the Product Key" Error on VirtualBox

Symptom: Occurs if using an answer file (unattended installation mode) when adding a new virtual machine in VBox OR if VBox sees an unattend.xml /autounattend.xml file in the ISO file you are using for the installation.
Cause: Automatic population of the invalid "Floppy" entry in VBox for the answer file.
Workaround: Since the answer file is actually in the ISO file, a separate "floppy" drive is neither needed nor valid thus must be deleted on STORAGE screen, and disabled on SYSTEM screen.
Note: Additionally, moving the Hard Drive into first position would also be more optimal.
Also: This video assumes there is a ProductKey entry in the answer file used.
It can be all zeros or be using an actual Windows key but related lines need to exist.