To encrypt an archive in 7-zip, once you’re at the Add to Archive dialog box, enter a password and select the Encryption method AES-256.

How you go about this will depend on the software you're using to create the file in the first place. Some applications have password protection features built in, while in other cases you'll need ...

7-Zip, WinRAR, and other similar utilities allow you to assign passwords to a file when you’re compiling it. The real trouble arises when you create a password so unique that you end up ...