Then inside MySQL prompt:

:

net stop MySQL :

ALTER USER 'root'@'localhost' IDENTIFIED BY 'new_strong_password'; FLUSH PRIVILEGES; EXIT; Stop MySQL service :

If you know password, just run:

mysql -u root -p Enter current password.

C:\Program Files\MySQL\MySQL Server 8.0\bin C:\Program Files\MySQL\MySQL Server 5.7\bin Navigate there or add to PATH. Stop MySQL service (optional but recommended for some versions):