Once a member server is promoted to a domain controller it will no longer have local accounts. When you demote the domain controller it will ask you to set a new local administrator password. However I am not sure how you would restart the active directory service if you disabled it entirely. Here is a link for reference about local accounts not being available on a domain controller. 

EDIT: like Ben said directory restore mode is your best bet with this. 

Local user accounts have disappeared after installing Active Directory and running dcpromo
can you help me how to use CakePHP's displayField directive, I can not figure out how to use it...

so, in a model file, i have following code...

&lt;?php


class Task extends AppModel {

var $name = 'Task';
var $displayField = 'projectName';

//The Associations below have been created with all possible keys, those that are not needed can be removed
var $belongsTo = array(
    'User' =&gt; array(
        'className' =&gt; 'User',
        'foreignKey' =&gt; 'user_id',
        'conditions' =&gt; '',
        'fields' =&gt; '',
        'order' =&gt; ''


etc...

how can i use this, to display fied projectName in select form field?

thank you in advance!!!
