Fatal error: $CFG->dataroot is not writable, admin has to fix directory permissions! Exiting

unset($CFG); global $CFG; $CFG = new stdClass(); $CFG->dbtype = 'sqlsrv'; $CFG->dblibrary = 'native'; $CFG->dbhost = 'my remote db ip address'; $CFG->dbname = 'remote database name'; $CFG->dbuser = '****'; $CFG->dbpass = '**********'; $CFG->prefix = 'mdl_'; $CFG->dboptions = array ( 'dbpersist' => 0, 'dbport' => 1433, 'dbsocket' => '', ); $CFG->wwwroot = '
http://localhost/LMS'; $CFG->dataroot = 'C:\\inetpub\\LMSdata'; $CFG->admin = 'admin'; $CFG->directorypermissions = 0777; This is my configuration in config.php. I'm using moodle 3.2 in IIS with php 7. Remote SQL server version 2012.