VeraCrypt - VeraCrypt is a free open source disk encryption software for Windows, Mac OSX and Linux.
OpenKiosk - OpenKiosk is a cross platform kiosk web browser based on Mozilla Firefox that can be easily installed and used to secure a computer for use as a public terminal.
Easy Vault - Easy Vault: Hide Pictures, Videos, Gallery, Files is an all-in-one privacy protection application designed for those who want to lock and hide their private files.
Netkiosk Kiosk Software. - Trusted by Government, Business and Education World-wide
Windows BitLocker - This topic provides a high-level overview of BitLocker, including a list of system requirements, practical applications, and deprecated features.
FrontFace - FrontFace is a solution for creating touch-enabled graphical user interfaces for kiosk systems and interactive information terminals which can be used to present any kind of media or content.