You have received several trouble tickets from the employees in the warehouse for the stand-alone computers used to control various shipping machines because the computers are not booting when powered. Each time a technician resolves the booting issue the boot order is changed in the firmware. Each computer is required to have the USB ports disabled in the firmware to keep employees from connecting rogue devices. Which of the following steps should be taken to eliminate these trouble tickets?

A. Enable the supervisor password in the BIOS/UEFI setup

B. Require all employees to use a unique Windows user account and password.

C. Install a lock on the computer case to prevent removal of the covers.

D. You have been tasked with training end users in security best practices and have observed a trend among users in which many are writing down their passwords.