Simple but powerful encryption tool for windows. Features 1.AES 256Bit Encryption with password hashing 2.On-Screen keyboard to defeat Keyloggers 3.Optional file backup of original unencrypted file 4.Built-In compression before encryption ... More info.
GnuPG is the GNU project's complete and free implementation of the OpenPGP standard as defined by RFC4880 . GnuPG allows to encrypt and sign your data and communication, features a versatile key managment system as well as access modules for all ... More info.
Free open-source disk encryption software for Windows Vista/XP, Mac OS X, and Linux. It doesnt get better then this, highly recommended.
More info: http://www.truecrypt.org/
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