Microsoft BitLocker - BitLocker is a full disk encryption feature included with Windows Vista and later.
Cryptomator - When it comes to saving your files on a cloud server, it is important to ensure the security of those files. Keeping your delicate files out of the wrong hands can save you a lot of time and hassle. Read more about Cryptomator.
Paubox - Paubox provides HIPAA compliant email encryption without the hassle of extra steps.
BoxCryptor - Boxcryptor encrypts your sensitive files before uploading them to cloud storage services like Dropbox, Google Drive, Microsoft OneDrive, Box, and many others.
OpenSSH - OpenSSH is a free version of the SSH connectivity tools that technical users rely on.
VeraCrypt - VeraCrypt is a free open source disk encryption software for Windows, Mac OSX and Linux.