You can reset the administrator user name and password joomla through PHPMyAdmin on your control panel.
To do this, consider the steps - these steps:
- Log in to your cPanel, then select the menu PHPMyAdmin.
- On page PHPMyAdmin select the Joomla database list (if installed joomla in a separate folder), or list the database directory on your domain.
- Then select the table "jos_users", and click the tab "browse"
- Note the list of usernames which has ID = 62 with the caption "Super Administrator", then click menu "edit" (pencil icon).
- Password that you see on the edit menu is a string has SQL from a series of letters or numbers in the password. To change your password to string a series of hash please click here.
- Copy and fill in the password that has been converted into a string hash in the password field.
- Click "Go" to save changes.
- Please log in again in your Joomla administrator, using the password has been changed.
After you successfully enter / log-in into your joomla account, you can make a change passwords back via the settings in the joomla account manager.