If you’re looking to delete an admin on a Mac, there are a few different ways to go about it. The first option is to open System Preferences and click on the Security & Privacy icon. From here, you can select the Users & Groups tab and click on the Edit button next to the admin user’s name. You’ll then be able to select the Remove option from the drop-down menu. If you don’t want to go through System Preferences, you can also delete an admin by using the Terminal app. First, open Terminal and type sudo rm -rf /Users/[username]/.MacOSX/Library/Preferences/com.apple.administeringusers.plist . This will remove all of the user’s preferences from MacOSX Library. ..
