enable auto login
At the Apple Store yesterday, OX 10.10.2 was installed on my Mac Mini. I am trying to enable auto login for myself. When I have autenticated myself by unlocking the change in Users & Groups, I am listed as the administrator. When I click on "Login Options" the Automatic Login choice is disabled. Hovering over it, I get this error message: "A user with an encrypted home folder can't log in automatically."
Why is my home folder encrypted? How can I fix this for automatic login?
Mac mini, OS X Yosemite (10.10.2)