This article shows how to enable password protection for a directory on your website.  It also shows how to create users who are allowed access to that specific directory.

If you want to view the content of the password protected directory in a browser and receiving a 404 error message, then you will need to enable "Directory Browsing".  Follow the link below to get instructions on how to enable Directory Browsing.

If you want to view the content of the password protected directory in a browser, but do not have an index.html or equivalent file, you will need to enable directory browsing. Otherwise, the directory will give you a 404 error when you attempt to browse the directory.

Adding password protection to a directory using the .htaccess editor