1、停止mysql服務（win+R,輸入：services.msc回車）
2、控制面板卸載MySQL
3、cmd下刪除MySQL服務：sc delete MySQL
4、刪除目錄
(1) C:\ProgramData\MySQL
5、刪除注冊表
(1)windows+R運行regedit
(2)HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\Application\MySQL
(3)HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\Eventlog\Application\MySQL
(4)HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Eventlog\Application\MySQL
6、重啟電腦