Which of the following features must be configured on a Windows OS desktop in order to encrypt files in a laptop?

HDD drivers are necessary for the operating system to interact with the hard disk but do not provide encryption capabilities.

BitLocker is a full-disk encryption feature included with certain editions of Windows, designed to protect data by encrypting an entire drive, which is precisely what is needed to encrypt files on a laptop.

Boot settings control how the operating system starts but are not directly responsible for encrypting files.

RAID (Redundant Array of Independent Disks) is a technology for data storage virtualization that combines multiple physical disk drive components into one or more logical units, primarily for performance or redundancy, not encryption.