If you get Access is denied message when opening encrypted files, you may need to first export the Encrypting File System (EFS) certificate and key.

Learn how to enable or disable Automatic Encryption of files moved to Encrypted folders using Registry or Group Policy on Windows 11/10.

How to Open Encrypted Files. Microsoft Windows' built-in encryption utility is designed to protect files from being open, read or modified by other users and computers.

TrueCrypt’s main window. When you create a virtual encrypted disk with TrueCrypt, you actually create a single encrypted file container that you can open or decrypt with the password you choose.

How to Recover Encrypted Microsoft Windows Files. Windows encryption protects sensitive files and folders by locking them when not in use or when you're away from your computer. Depending on the ...

With one command, gpg, you can have that file or folder encrypted so that the only way to decrypt it is with a password.