3.
Choose Protocol: You can leave this as it is.Choose Domain: If you don't have multiple domains, leave this as it is.In Directory: If you want to install this in a directory, for example example.com/forums, enter the directory name. Otherwise, leave this blank to install in your main domain example.com
Board Name: Name of the forumSite Description: Site DescriptionBoard E-mail: The forums e-mail address
Admin Username: Your new phpBB username (for security reason do not use the "Administrator " or the "Admin " username.)Admin Password: Use a strong password.Admin Email: Your e-mail address.
Note:
Select Language: The default language of the forum is English.
Finally, scroll down to the end of page and . Install babies.