I issued a command of:
DROP USER \'root\'@\'localhost\'; GRANT ALL PRIVILEGES ON . TO \'root\'@\'%\';
...in PhpMyAdmin. Immediately after t
Use the IP instead:
DROP USER 'root'@'127.0.0.1'; GRANT ALL PRIVILEGES ON . TO 'root'@'%';
For more possibilities, see this link.
To create the root user, seeing as MySQL is local & all, execute the following from the command line (Start > Run > "cmd" without quotes):
mysqladmin -u root password 'mynewpassword'
Documentation, and Lost root access in MySQL.