MySQLを再インストールすると,最後の,MySQL Server Instance Configuration で,Apply security settingsのプロセスがうまくいかず,エラーになることがあります. Connection Error The security settings could not be applied to the databese because the connection has failed with the following error. Error No.1045 Access denied fro user 'root'@'localhost'(using password;YES) The security settings could not be applied Error Number 1045 Access denied for