How does BitLocker enhance the security of Windows 10?

BitLocker enhances the security of Windows 10 primarily by encrypting data on the hard drive. This encryption helps protect sensitive information from unauthorized access, particularly in scenarios where the device might be lost or stolen. By using a full disk encryption approach, BitLocker ensures that the entire drive is protected with strong encryption algorithms. This means that even if someone gains physical access to the hard drive, they would be unable to read the data without the proper authentication, such as entering a password or using a recovery key.

Encryption plays a crucial role in safeguarding data integrity and confidentiality, especially for organizations and users who store sensitive or personal information on their devices. If an unauthorized person attempts to access the encrypted data without going through the required security measures, they would encounter significant barriers due to encryption.

In contrast, the other options relate to different aspects of system security and performance management but do not directly involve the core function of BitLocker, which is to provide data encryption.