I have no plans to actually use the root user, but I came across the document HT1528, "Enabling and using the 'root' user in Mac OS X", and followed the instructions for "Mac OS X v10.6 and later" to see if it was available through the GUI. I have a mid-2010 15" MBP with OS X v10.6.6. As the only user, I am the Admin. Following the procedure, steps 1 to 8 work, but in step 9 there is no Edit menu in the Directory Utility window. There is only a pencil icon for editing the listed services, which does work. The four services listed and default settings are: Active Directory - not enabled BSD Flat File and NIS - enabled LDAPv3 - enabled Local - enabled I tried the Directory Utility help, but that just repeated the steps in the HT1528 document for accessing the root user. Is there someting else that could be preventing access to root user, in the Directory Utility?