WIN8 uses BitLocker encryption with the following methods:
First of all, with BitLocker Drive Encryption, you can help protect all files stored on a drive that has Windows installed (the operating system drive) and a fixed data drive (such as an internal hard drive). Files remain encrypted only if they are stored in an encrypted drive. Files copied to another drive or computer will be decrypted. If you share files with other users, such as through a network, the files remain encrypted when they are stored on the encrypted drive, but they are usually accessible to authorized users. (The BitLocker to go reader is used to unlock an encrypted drive on a computer running Windows Vista or Windows XP.) )
The BitLocker encryption process is as follows:
Win+x the shortcut menu, click Control Panel, double-click BitLocker Drive Encryption, select the disk you want to encrypt, and click Enable BitLocker.