The Your Profile Screen is accessible as a sub-menu under the Users menu item in the left sidebar. On this page you can set personal features of your WordPress back-end experience and also change your name listing, nickname, email address that is connected with your User account, and your password. You cannot however change your username. In order to change your username, you will need to have an Administrator delete your account and re-add it with a new username.
Your Profile Screen
Posted in Users
