Setup New Administrator
From Joomla! Documentation
- Log into your Joomla Backend. The default URL is <yourwebsite>/administrator.
- Go to Users → Manage.
- Click on New in the top left corner.
- Enter a Name.
- Enter a Login Name.
- Enter an Email address. This address should be set to receive System Emails.
- Enter and then confirm the password.
- Select Administrator or Super User depending on the access level you wish to grant.
- Save & Close.