This is something each of us should do immediately. Using the “admin” username is not a good idea from a security point of view, so one of your first WordPress tasks should be to create a new administrator level user (and I do hate calling people “users” but I’ll only confuse things if I call them anything different) and use that.
- Go to Users, Add New
- Enter the required Username and other details as prompted – the First Name, Last Name, E-mail address, and give them a password – make it something strong to encourage good security.
- Leave the check box against “Send Password?” ticked if that is what you want.
- Set the Role of that user – an Administrator can do anything, the Editor role can publish and manage posts and pages – both their own and others’, an Author can publish and manage their own blog posts, a Contributor can write and manage their own posts but cannot publish them (useful if you want to manage yourself), and a Subscriber simply has a profile that they can manage.
And Add User to save. That’s it.
If you want to manage your Users, including change their Role, or delete them – go to Users, Authors & Users and then Edit the user concerned.
If seeing this done is helpful, here’s a screencast of the process: