I get this message on a new 2901 Cisco router:
Cisco Configuration Professional (Cisco CP) is installed on this device and it provides the default username "cisco" for one-time use. If you have already used the username "cisco" to login to the router and your IOS image supports the "one-time" user option, then this username has already expired. You will not be able to login to the router with this username after you exit this session.
It is strongly suggested that you create a new username with a privilege level of 15 using the following command.
username <myuser> privilege 15 secret 0 <mypassword>
Replace and with the username and password you want to use.
It appears every time I login and everytime I
show run. I already set up my username. How do I turn it off?