J.R, ticking the box and selecting to bypass this screen would prevent it from appearing next time, it’s part of the first run. So if it’s bypassed it writes to the registry that it is not the first run and doesn’t show this screen.

As for the username/password. I have never personally seen that screen but the only thought I have is that the game installation wants to connect to a server with a password and that the password is incorrect.

Like I said there is no reason for it to prompt you for anything, the game has no use of usernames/passwords.