PowerShell – Configure Active Directory Permissions to Join Computer to the Domain

In order for MDT to join machines into the contoso.com domain you need to create an account and configure permissions in Active Directory.

These steps will show you how to configure an Active Directory account with the permissions required to deploy a Windows 10 machine to the domain using MDT. These steps assume you have downloaded the sample Set-OUPermissions.ps1 script and copied it to C:\Setup\Scripts on DC01. The account is used for Windows Preinstallation Environment (Windows PE) to connect to MDT01.

  1. On DC01, using Active Directory User and Computers, browse to contoso.com / Contoso / Service Accounts.
  2. Select the Service Accounts organizational unit (OU) and create the MDT_JD account using the following settings:
    1. Name: MDT_JD
    2. User logon name: MDT_JD
    3. Password: P@ssw0rd
    4. User must change password at next logon: Clear
    5. User cannot change password: Select
    6. Password never expires: Select
  3. In an elevated Windows PowerShell prompt (run as Administrator), run the following commands and press Enter after each command:
    Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Force
    Set-Location C:\Setup\Scripts
    .\Set-OUPermissions.ps1 -Account MDT_JD -TargetOU "OU=Workstations,OU=Computers,OU=Contoso"
    
  4. The Set-OUPermissions.ps1 script allows the MDT_JD user account permissions to manage computer accounts in the Contoso / Computers OU. Below you find a list of the permissions being granted:
    1. Scope: This object and all descendant objects
      1. Create Computer objects
      2. Delete Computer objects
    2. Scope: Descendant Computer objects
      1. Read All Properties
      2. Write All Properties
      3. Read Permissions
      4. Modify Permissions
      5. Change Password
      6. Reset Password
      7. Validated write to DNS host name
      8. Validated write to service principal name
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