A helpdesk administrator is implementing encryption for data at rest for their Enterprise Windows clients. Which of the following is a common solution?

BitLocker is a built-in encryption feature in the Windows operating system specifically designed to protect data at rest. This means it encrypts the entire disk volume, making it an effective solution for securing data stored on devices. BitLocker uses the AES encryption algorithm, which is widely regarded for its strength in protecting sensitive information from unauthorized access, especially if a device is lost or stolen.

The primary objective of data at rest encryption is to safeguard stored data from potential threats, and BitLocker accomplishes this seamlessly by encrypting the entire disk automatically. It also provides additional features, such as pre-boot authentication, which ensures that only authorized users can access the encrypted data.

In contrast, other options like TLS, IPSec, and Software Guard Extensions serve different purposes. TLS is focused on securing data in transit over networks, ensuring secure communication rather than protecting data stored on a device. IPSec also addresses data in transit, providing secure communication for IP networks. Software Guard Extensions, on the other hand, are designed to create isolated execution environments for secure applications but do not provide encryption for data at rest.

Thus, for implementing encryption specifically aimed at protecting data stored on Enterprise Windows clients, BitLocker is the most appropriate and effective solution.