How to Remove a Mac From a Domain (9 Steps)

Click on the 'Finder' icon in the dock to open a new Finder window.
Highlight your internal hard drive from the 'Devices' list on the left side of the window.
Open the 'System' and 'Library' folders.
Open the 'CoreServices' folder and then double-click on the 'Directory Utility' icon.
Go to the 'Services' tab at the top of the window.
Click on the lock symbol and enter your administrative username and password.
Highlight the item labeled 'Active Directory' and then click on the 'Edit' button.
Click on the 'Unbind' button and enter your administrative username and password again.
Press 'Apply' to save the settings and remove the computer from the domain.
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