a windows service with the name MYSQL already e...

安装MySQL的时候出现这个报错：a windows service with the name MYSQL already exists.Please uninstall this service correctly or choose a different name for the new service.

开始－－运行－－输入 regedit，删除残留的注册表信息HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services下面找到MySQL注册表信息把它整个删掉后，重装mysql成功了！

接着到regedit把注册表

HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Services/Eventlog/Applications/MySQL

HKEY_LOCAL_MACHINE/SYSTEM/ControlSet002/Services/Eventlog/Applications/MySQL

HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/Eventlog/Applications/MySQL