Axcrypt - AxCrypt - Password Protect Files With Strong Encryption. AxCrypt is the leading open source file encryption software for Windows.
Knox - Knox offers easy disk image encryption and comes with a built-in backup service.
SanDisk SecureAccess - SanDisk SecureAccess free download: Data keeper software for Windows. Safe PC download for Windows 32-bit and 64-bit, latest version.
Advanced File Security Basic - Download Advanced File Security Basic. Protect files by encrypting them with a strong password, a series of questions, or even an USB key you can carry around with this powerful security solution
TrueCrypt - TrueCrypt is a leading cross-platform that provides encryption tools that allow you to migrate any encrypted data to virtual disks images on your systems.
Exocet - Exocet creates a Folder on your System.