Disabling user registration
From Joomla! Documentation
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.
User registrations are enabled in a default Joomla! installation. However there might be cases where you use extensions as a replacement and wish to turn off the default Joomla user management. To do this you must perform the following steps:
- Navigate to Users → User Manager then click on User Manager. Once in User Manager Screen, click on 'Options' Toolbar button to show the options page for users. Toggle choice yes|no next to Allow user registration, then click save.