Security is super important, but sometimes speed is the essence. If you live and work in an environment where you are confident of your privacy, your Mac can automatically sign you up without a password. Here's how.
Warning : If you follow this process and your Mac is lost or stolen, anyone with access to it wants to be able to access your data, completely unfettered. That may be a risk, but only you can make that decision. If you're using this technique, we recommend that you do it at home or in another secure location and dispose of it when you're not.
Assuming you want to proceed, let's get started. 1
How to Enable Automatic Login on Your Mac
To start, click on the Apple logo at the top of the screen and then click "System Preferences."
Next, click "Users & Groups."
Click the padlock icon and enter your account password.
Once you have successfully authenticated, click "Login Options" and then click the "Automatic login" drop- down. Automatically log in. Again, you need to enter a password, this time for the account you selected to log in.
Note: if your user File must be grayed out, you probably have FileVault encryption enabled or that user account uses icloud password to sign in. You must disable FileVault encryption (System Preferences> Security & Privacy> FileVault> lock icon> Turn Off FileVault) and use a local password (System Preferences> Users & Groups> [Account Name]> Change Password)
Once this process is complete, the next time you restart your Mac it will automatically log into the pre-selected account.