Folder Lock - Folder Lock is a security software that helps you to password protect files, shred files, clean history, encrypt the personal documents and much more.
Windows BitLocker - This topic provides a high-level overview of BitLocker, including a list of system requirements, practical applications, and deprecated features.
Wise Folder Hider - Wise Folder Hider is a free file/folder hiding tool.
Axcrypt - AxCrypt - Password Protect Files With Strong Encryption. AxCrypt is the leading open source file encryption software for Windows.
Vov Hide Files - Lock your files and folders from prying eyes.
SanDisk SecureAccess - SanDisk SecureAccess free download: Data keeper software for Windows. Safe PC download for Windows 32-bit and 64-bit, latest version.