Increased speed of AES encryption and decryption in Windows.Command line options for creating new volumes in Linux and Mac OS X.Feature useful for users who want to backup or repair a TrueCrypt encrypted operating system from another operating system. Ability to mount a partition that is within the key scope of system encryption without pre-boot authentication such as a partition located on the encrypted system drive of another operating system that is not running in Windows Vista/XP/2008/2003.

Support for hibernation on computers where the system partition is encrypted in Windows Vista/XP/2008/2003.The TrueCrypt version 5.1 was released on Mahas the following new features, enhancements, improvements or bug fixes: Encryption algorithms supported including AES-256, Serpent, and Twofish.Provides two levels of plausible deniability, in case an adversary forces you to reveal the password: hidden volume (steganography) and no TrueCrypt volume can be identified (volumes cannot be distinguished from random data).Encryption is automatic, real-time (on-the-fly) and transparent.Encrypts a partition or drive where Windows is installed (pre-boot authentication).Encrypts an entire partition or storage device such as USB flash drive or hard drive.Creates a virtual encrypted disk within a file and mounts it as a real disk.Although TrueCrypt is free, but it’s as powerful is not more powerful that other disk encryption utility available, and comes with more features than disk encryption program for BitLocker. In essence, it’s a free alternative encryption software which only available for free to Vista Ultimate and Enterprise editions users, as part of Ultimate Extras package. TrueCrypt is a free open-source disk encryption software for Windows Vista, Windows XP, Mac OS X, and Linux.

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