How to remove/enable ‘Register now….’ Link on logon page? Users who logged through ‘Register now…’ are Anonymous or not? If not from where they get data?

Hi Experts,

How to remove/enable ‘Register now….’ Link on logon page? Users who logged through ‘Register now…’ are Anonymous or not? If not from where they get data?

Thanks in Advance.

Regards,

Devi