How to turn off the user select screen in windows 7?

Ran windows update on a new laptop today, somehow in doing that and probably messing with other stuff I accidentally changed a setting and now when it turns on it has the screen where I have to click the user name and then enter the password. Before all I had to do was enter the password, how do I get back to that? 

I ran into this ages ago and had to fix something in the registry. Unfortunately I can't remember what or find an exact link.

This link might point you in the right direction though;