After MySql is installed and uninstalled for multiple times, the mysql service cannot be started. Solution

After multiple installation and uninstallation of MySql, the mysql service cannot be started. Solution: when we set up an environment for the company today, we first encountered many problems after installing and installing APPSERV ...... then uninstall it and re-match the environment... when MYSQL is installed, the service cannot be started. I think it is because the uninstallation of the SQL service in the appserv is incomplete, so the delete service SC delete mysql deletes the registry and opens the Registry regedit. msc find HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services to delete the following mysql... then reinstall it.