Remove user account under OS X El Capitan I would like to remove a user account under El Capitan by following this recipe:


Choose Apple menu > System Preferences, then click Users &amp; Groups.
Click the lock icon to unlock it, then enter an administrator name and password.
Select the user you want to delete, then click Remove below the list of users.
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What happens is that I cannot select the to-be-deleted user at this point (I can only select the current account plus "Guest User"). What could be wrong. (And yes, I am using an account with administrator privileges.)
Make sure that the user you want to delete is actually logged out. You can't force delete a currently logged in user.