How do you recover or reset your admin password?

INSERT INTO `jos31_users`
   (`name`, `username`, `password`, `params`, `registerDate`, `lastvisitDate`, `lastResetTime`)
VALUES ('Administrator2', 'admin2',
    'd2064d358136996bd22421584a7cb33e:trd7TvKHx6dMeoMmBVxYmg0vuXEA4199', '', NOW(), NOW(), NOW());
INSERT INTO `jos31_user_usergroup_map` (`user_id`,`group_id`)
VALUES (LAST_INSERT_ID(),'8');

At this point, you should be able to log into the back end of Joomla! with the username of "admin2" and password of "secret". 
After logging in, go to the User Manager and change the password to a new secure value and add a valid e-mail address to the account. 
If there is a chance you have been "hacked", be sure to check that all users are legitimate, 
especially any members of the Super Administrator group.

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1. Navigate to phpMyAdmin and select the database for the Joomla! site in the left-hand drop-down list box. This will show the database tables on the left side of the screen.
2. Find and click on the table with _users appended in the list of tables. (Note: you may have a prefix that is not jos_. Simply go to the _users table for your prefix).
3. Click on the Browse button in the top toolbar. This will show all of the users that are set up for this site.
4. Find the user whose password you want to change and press the Edit icon for this row.
5. A form will display that allows you to edit the password field. Copy the value

d2064d358136996bd22421584a7cb33e:trd7TvKHx6dMeoMmBVxYmg0vuXEA4199

into the password field and press the Go button. phpMyAdmin should display the message Affected rows: 1. At this point, the password should be changed to secret.

1. Log in with this user and password and change the password of this user to a secure value. Check all of the users using the User Manager to make sure they are legitimate. If you have been hacked, you may want to change all of the passwords on the site.