Learn how to add a Password to zip files. Using free 7-Zip, you can encrypt & easily add a Password to zipped, archived & compressed files.

But what kind of encryption it provides depends on the program you use to create and open the ZIP file. The .zip format supports two forms of encryption and password protection.

Occasionally, you'll need to open several compressed files from one ZIP folder. While Windows does a fine job extracting, there are better tools to unzip.