log on screen windows 7

hi,

 

before when i turn my computer on it gives me an option to click on my user before i can log on although i dont have a password and theres no other users aside from me..now after restarting windows directly log on without giving me an option to click my user name. i changed the log on screen, i like to see it before logging on. and i dont want to create a password because everybody in the house is using the same computer..please help...

 

thanks