Tired of being asked to enter your password to log-in every time your computer starts up? If you are, you may want to get rid of that security feature, especially if you are the only one who has physical access to your computer.
How to turn on the automatic login
From the Apple Menu, choose “System Preferences” and then click “Users & Groups”.
Then, click on the lock symbol in the left-hand bottom corner and enter your credentials.
Once you've typed in your password, click “Login Options”. Next to “Automatic login”, choose the user that you want to log in automatically.
Done! The next time you restart your Mac, you’ll be taken to the desktop right away, without having to type any password. You can always repeat the above process to turn off automatic log-in, if you need to.