How can I change, the username and password to raspbian?

[Pirathonite]

Dear,

How can I change the:

pi
raspberry

startx

in raspbian.

Thank you all!

[joan]

Use the passwd command to change the password.

I suggest you don't change the user name until you are more used to the Pi.

[Pirathonite]

I have changed the password,

How can I change the username?

Thank you all!

[rpdom]

The easiest way to change the username is to set up a new user. However the "pi" user has been set up with a few special permissions which will also need to be done for the new user (sudo is one of these things, the desktop also requires some others), which is why joan suggested leaving the user name as it is for now.

Also, some software expects there to be a "pi" user name.