Remember that you'll need to have full-diskencryption, using a product such as PGP Disk, TrueCrypt or BitLocker, already installed and enabled to make this work.
记住你需要全盘加密产品，运用PGP磁盘，加密软件或驱动器加密，确保它们已经安装并且能正常工作。
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As the tweakable enciphering mode is introduced, fulldiskencryption can give the more optimized defense against attack than file-system-level encryption.