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.
Wise Folder Hider - Wise Folder Hider is a free file/folder hiding tool.
Vov Hide Files - Lock your files and folders from prying eyes.
Gilisoft File Lock Pro - Password Protect Files, Folders on Local Drive , USB drive or LAN Network.
Windows BitLocker - This topic provides a high-level overview of BitLocker, including a list of system requirements, practical applications, and deprecated features.
Lock My Folders - Best alternative to EFS. Let you lock and password-protect folders or files, transparently encrypt your important or confidential files on the fly.