The MySQL service cannot start the 1067 error process. unexpected termination Solution

I installed MySQL 5.1 and the same MSI installation file before. After I uninstalled MySQL, I re-installed it in a few days.

After the installation is complete, When I configure the MySQL instance, the "Start Service" Step 3 fails. I tried to start the service myself or use the command line to start the service. I found it online, most people say my. if there is a problem with INI, it doesn't work if you try it.

 

When re-installing the tool, I accidentally saw a data installation directory. The default value is "C:/Documents and Settings/all users/Application Data/MySQL /... ", immediately did not hesitate to go in and delete the evil directory. For the sake of security, I searched the registry and deleted all the content related to" MySQL. All the way to next, configure the instance, and finally OK!