1. 打开windows服务(开始->运行->Services.MSC)
2. 找到名为Mysql Server"的服务并检查路径，它应该是这样的:

"C:\Program Files (x86)\Parallels\Plesk\Databases\MySQL51\bin\mysqld.exe" "--defaults-file=C:\Program Files (x86)\Parallels\Plesk\Databases\MySQL\Data\my.ini" MySQL

"C:\Program Files (x86)\Parallels\Plesk\Databases\MySQL51\bin\mysqld.exe" "--defaults-file=C:\Program Files (x86)\Parallels\Plesk\Databases\MySQL\Data\my.ini" MySQL

1. 确保该路径存在上述Mysql文件夹和可执行文件.

或

有时mysqld-nt.exe的文件名重命名为mysqld-nt.exe~所以重命名回原来的名字，这样可以解决问题.

Sometimes the file name of mysqld-nt.exe renamed to mysqld-nt.exe~ so rename it back to its original name and this may solve the problem.