Goto "phpmyadmin" folder, find and open "config.inc.php" file
Find the line: $cfg [‘Servers’] [$a] [‘auth_type’] = ‘config’; in “config.inc.php” file.
Change the word $cfg [‘Servers’] [$a] [‘auth_type’] = ‘config’; to $cfg [‘Servers’] [$a] [‘auth_type’] = ‘cookie’; in “config.inc.php” file and Save the changes.
Now open browser and type “localhost/phpmyadmin”. Enter username is “root“. password is null means empty. you don’t type anything leave blank and press GO button.
Now you can see “change password” link. please click that link.
Set your phpMyAdmin password and retype again and press GO button.