Which method can be used to protect data at rest on Microsoft Windows computers?

BitLocker is a disk encryption feature built into Microsoft Windows that is designed specifically to protect data at rest. When a drive is encrypted with BitLocker, the data on that drive is secured through encryption algorithms, meaning that without the appropriate authentication, an unauthorized person cannot access the stored information. This is particularly useful for protecting sensitive data on laptops and external drives, which might be lost or stolen.

BitLocker integrates with the operating system to automatically encrypt the drive during the setup process, ensuring that the data is always secure. It uses various methods for securing the encryption keys, including the Trusted Platform Module (TPM), which helps to bind the keys to the hardware, providing more robustness against tampering.

In contrast, while other methods mentioned can enhance security in different aspects, they do not specifically encrypt data at rest. For example, TLS is primarily used for securing data in transit over a network, IPSec secures Internet Protocol communications by authenticating and encrypting each IP packet within a communication session, and Software Guard Extensions (SGX) provide application-level security by isolating sensitive data in memory but do not address the encryption of data stored on disks. Thus, BitLocker stands out as the most appropriate choice for protecting data at rest on Microsoft Windows computers