以管理员身份运行，在命令行输入cd+mySQL的bin目录的安装路径

C:\Windows\system32>cd C:\Program Files\MySQL\MySQL Server5.6\bin

C:\Program Files\MySQL\MySQL Server5.6\bin>mysqld --remove

Service successfully removed.

C:\Program Files\MySQL\MySQL Server5.6\bin>mysqld --install

Service successfully installed.

C:\Program Files\MySQL\MySQL Server5.6\bin>net start mysql

MySQL 服务正在启动 .

MySQL 服务已经启动成功。