The solution to forget the root password of mysql under Windows (transfer)

1. Open the first cmd window, switch to the bin directory of mysql, and run the command:
mysqld --defaults-file="C:\Program Files\MySQL\MySQL Server 5.1\my.ini" --console --skip- grant-tables

2. Open the second cmd window and connect to mysql:

enter the command:

mysql -uroot -p

appears:

Enter password: Enter

directly here without entering a password.

Then there will be a successful login information,

use the command:

show databases;

use the command to switch to the mysql database:

use mysql;

use the command to change the root password:

UPDATE user SET Password=PASSWORD('newpassword') where USER='root';


Refresh permissions:

FLUSH PRIVILEGES;

then log out and log in again:

quit

Log in again:

mysql -uroot -p

A password prompt appears, enter a new password to log in:

Enter password: ***********

Display login Message: All is ok if successful