You can try to start the MYSQL server manually and log in with mysql_administrator_1.2 and console: 1, manually start the service: cmd--and F:\MYSQL\MYSQLSERVER5 .1\bin\mysqld--console See innodb:the first specified datafile c:\ibdata\ibdata1 did not exist:  INNODB:A new database to be created! innodb:setting file c:\ibdata\ibdata1 size to 209715200 innodb:database physically writes the file full:wait ... Wait a long time finally see Mysqld:ready for connections &N Bsp Version: ' 5.1.2-alpha ' socket: ' port:3306 The MYSQL service has been started and can log in, at this time: the login name is root, secret The code is empty, the IP address can only write localhost or 127.0.0.1, because now root permissions only allow local login, remote login can not be 2,mysql into service Simple Add Method: Cmd--F:\MySql\MySqlServer5.1\bin\mysqld--install 3, modify MYSQL root password: use mysql update user set password= ' admin ' where user= ' root ';
Green version MySQL start, make MySQL service