Summary: We will use Bitlocker to secure device data, requiring a PIN or Password to boot into Windows or read the hard drive. This is aimed to be the definitive guide to getting started and managing BitLocker. Technical Details Bitlocker locks the key for decryption with multiple keys (“Protectors”). This can include TPM, TPM and PIN, Password, a USB key, and even certificates. You can have multiple ways to unlock the decryption key The keys appear transparent to the user, even during recovery The hard drive can be removed and put into another computer.