Axcrypt - AxCrypt - Password Protect Files With Strong Encryption. AxCrypt is the leading open source file encryption software for Windows.

Microsoft BitLocker - BitLocker is a full disk encryption feature included with Windows Vista and later.

Windows BitLocker - This topic provides a high-level overview of BitLocker, including a list of system requirements, practical applications, and deprecated features.

Paubox - Paubox provides HIPAA compliant email encryption without the hassle of extra steps.

File Lock PEA - Password-encryption of files and directories. File PEA encrypts files and folders with authenticated encryption to protect confidentiality and integrity. The program uses memory-hard key derivation functions to prevent custom hardware attacks.

OpenSSH - OpenSSH is a free version of the SSH connectivity tools that technical users rely on.