RAR files can be password protected to keep the files inside them safe and secure and prevent unauthorized access.
To create a password-protected RAR file, download and install WinRAR on your Windows 11 computer, navigate to the file or folder you want to compress, right-click and select the Add to Archive option.
To set a password on an existing RAR archive, right-click on the file, select Open with WinRAR and click on Tools > Convert Archives, then set the password in the Conversion options.
WinRAR is a safe and free tool that can unlock password-protected RAR files.