Can browse /apps

On the subject of a new install of 9.1.5 again. I seem to be able to browse the /apps folder from a web browser, so if I enter http://ip address/apps, the directory listing appears. I thought if I removed the app_paths array from config.php, it would disable this. I restarted apache, but I can still browse. What's the correct way to disable this?

Please configure your web server properly. Look up the docs on how to setup the server correctly.