how to delete users

I don't know where I can find the right place for USER. I am not developer. Every where is developer place.

 

I installed an elgg site and many people already registerd. If someone validate their account I can't delete or edit any user account with my admin account. this is really basic work for administrator to add - delete or change user.  Did I miss something.

- Searching of filter registration. Do you have any suggestion ? I close the registration untill I found it otherwise in few days, my new website will be totaly spammed.