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.
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.
Folder Guard - Folder Guard is powerful security software for Windows 7, Vista, XP, 2000.
My Lockbox - My Lockbox is a security software enabling you to password protect any folder on your computer.
VeraCrypt - VeraCrypt is a free open source disk encryption software for Windows, Mac OSX and Linux.