TVB is a web application, which gets deployed on every computer where TVB_Distribution is downloaded and tvb_start command is executed.
This happens usually in a local environment; which means that the user and resource management will be done locally, in that instance, and not in a centralised manner.
When TVB is started for the first time, you will see a settings page, where you can define the administrator account of that TVB instance.
Default that is: admin / pass (exactly these words).

If you are using TVB in a single-user manner (not shared with other colleagues), feel free to use only this user while working with TVB; you do not need to bother with creating/registering other accounts.
It is although recommended for you to change the password and the email address for this administrator account, especially if you are working in a LAN and your computer is not having a strong firewall.

If you are using TVB in a shared environment (e.g. installed on a server and accessed from remote by multiple people), you could follow the following steps:
- register accounts
- login with administrator
- check admin's profile page, link "Manage other users"
- check the "validate" checkbox for new users that you want active, and click "Save" to apply



