Which password locks access to a hard drive connected to the system?

The password that specifically locks access to a hard drive connected to the system is the Storage/Hard Drive Password. This type of password is designed to prevent unauthorized access to the data stored on the hard drive itself. When set, it typically requires the user to enter the password before the drive can be accessed or read, effectively securing the data from unauthorized users.

In contrast, the Supervisor/Administrator/Setup Password is more focused on preventing access to the computer's BIOS settings or setup routines, which control hardware configurations but do not directly protect the contents of the hard drive.

The User/System Password is generally used to prevent access to the operating system itself. While it can restrict login attempts to the system, it does not inherently lock the hard drive at a hardware level.

Secure Boot is a security feature that ensures only software that has been verified by the system firmware can be executed during the boot process. It's more about maintaining system integrity at startup and does not pertain directly to locking access to the hard drive.

Thus, the Storage/Hard Drive Password is the correct answer, as it is specifically designed to manage access to the hard drive and thereby safeguard the sensitive data it contains.