A beginner's guide to BitLocker, Windows' built-in encryption tool | PCWorld. In the Wednesday edition of "this is a no brainer", I give you BitLocker encryption, which is baked into Windows 10 Pro. If you are a lawyer, and you work on confidential client files on your computer, you need to upgrade from Windows 10 Home to Pro, which includes the ability to encrypt the entire drive. The cost is minimal, at $99, and could save you a world of hurt and embarrassment; not to mention legal liability, if your computer is lost or stolen, and the data accessed by a determined hacker. Encryption will protect your data against most everyone; except the Government. Your phone should also be encrypted. It is likely that an attorney, who is required by the Code of Professional Responsibility to keep client's data secure, and who is required to take "reasonable" precautions to protect the data, would face sanctions and liability if he fails to do so. Encrypt the sucker. Today.