Change Admin User Name Again

It can be changed if you know how to access your database. But it requires you to have good database knowledge and it has risks to cause troubles if you done something wrong.

It is very simple to do, and it has nothing to do with the Better WP Security plugin.

If you have an account with administrator privileges you can create a new user, with any name you want, and set the new account as an administrator.

Then if you also want to get rid of the old administrator account, that is simple too. Login with the new administrator account you created and delete the old administrator account. It will ask you what you want to do with the posts that belong to the old account. You can select to assign them to the new administrator account.

Very simple. No database knowledge needed.

Technical background:
The only thing the rename administrator account feature of BWPS does is change the name and the database id number of the administrator account. That is all. You can do the same thing yourself using the technique above. The BWPS plugin just makes it faster to do.