Solution to the failure of MySQL installation starting the server

1. The first method is
   to uninstall and reinstall. When uninstalling, pay attention to
   ① the MySQL folder in the hidden folder appData;
   ② pay attention to the MYSQL folder under C:\Program Files (x86);
   ③ is the registry.

Win+R 输入 regedit 运行，进入注册表编辑器，按下图路径，找到MySQL，进而删除MySQL注册表信息。

④Use to sc delete mysql名称delete the mysql service
2. The second method
: After the mysql installation error is reported, do not exit
①Start the task manager, open the service and find the mysql service
②Select the mysql service, click Properties-Login-Select the local system account and allow the service to interact with the desktop
③Go back to the mysql installation interface, click execute, continue the installation, and it will be successful.
In fact, when the error occurs when starting the server, the mysql installation has been completed. 3. The reason for the permissions of
the third method. Solution. Steps: Click Computer Management - System Tools - Local Users and Groups - Click Groups - Find 'Administrators' - Select 'Administrator', click Add Click Advanced, and select Find Now Select 'NETWORK SERVER' and click OK - Add