Configuring BitLocker This lesson covers configuring BitLocker. BitLocker is a tool that helps to protect data in a group policy environment. Using the edit function in the default domain policy, participants in this lab-based lesson learn step-by-step instructions in configuring BitLocker drive encryption. It is important to protect the data in case it needs to be recovered from the drive, so this option must be enabled. In the final step, the drive is encrypted so the data is protected and backed up.