mysql卸载后安装不了。解决办法

Using Windows 7, here's what I had to do:

1.Uninstsall MySQL using the uninstaller.
2.Delete C:\Program Files\MySQL
3.Delete C:\Program Files (x86)\MySQL
4.Delete C:\ProgramData\MySQL
5.Delete from any Users' AppData folders. Example: C:\Users\rdoverby\AppData\Roaming\MySQL
6.Reinstall MySQL

输入%appdata% 打开目录 删除mysql目录
以管理员身份运行cmd 输入 sc delete mysql 删除mysql服务