How to make 1 user account out of 2?

[Shadyriley]

So my gf let me share her MacBook and made a separate account for me on a partition of the harddrive. She got a MacBook air and gave me the MacBook so I want to delete her account on it and have the computer and all the space on just my account. How do I do this?

 

[JamesGorman]

Should be able to just log in in your account and delete the other account through system preferences.