Hi, some weeks ago I faced a bad problem, hundreds of spam bots were registering as k2 users leaving articles with links for SEO purposes.
I removed them, enabled all type of bots protection in K2 settings, disabled user profile, and even deleted register.php file in k2/templates/ folder

But they are still appearing, how can I get rid of new registrations?

Thanks

You can disable new Joomla! registrations from Users -> Users Management.

Thanks! It seems to be working

You 're welcome.