BoxCryptor - Boxcryptor encrypts your sensitive files before uploading them to cloud storage services like Dropbox, Google Drive, Microsoft OneDrive, Box, and many others.
S.S.E. File Encryptor - S.S.E. File Encryptor is a cross-platform encrypter/decrypter of files and folders.
Cryptsync - CryptSync.
LibreCrypt - LibreCrypt (formerly DoxBox) is an open-source disk encryption for Windows and the successor of...
nCrypted Cloud - nCrypted Cloud is a Privacy, Security, and Collaboration solution that gives users full control...
Windows BitLocker - This topic provides a high-level overview of BitLocker, including a list of system requirements, practical applications, and deprecated features.