Password-encryption of files and folders. The program is written in Java and therefore platform-independent and runs on nearly every system without installation, but requires a Java Runtime Environment - that is already installed in most cases. File PEA encrypts files and folders with authenticated encryption to protect confidentiality and integrity of the data and uses memory-hard key derivation functions to prevent custom hardware attacks.
Encrypto - Encrypto lets you encrypt files before sending them to friends or coworkers.
Axcrypt - AxCrypt - Password Protect Files With Strong Encryption. AxCrypt is the leading open source file encryption software for Windows.
EncFSMP - EncFSMP, a program to mount EncFS folders on Windows and OS X.
Windows BitLocker - This topic provides a high-level overview of BitLocker, including a list of system requirements, practical applications, and deprecated features.
AES Crypt - AES Crypt is an advanced file encryption utility that integrates with the Windows shell or runs from the Linux command prompt to provide a simple, yet powerful, tool for encrypting files using the Advanced Encryption Standard (AES).
Unicode Crypter - Encrypt and Decrypt Unicode!