Prepare Active Directory with powershell

If you’re planning to Install Active directory on multiple DCs for backup, you can speed up this process by using the following script which is provided by Microsoft. but you’ll have to copy and paste it in notepad and save it in .ps1 extension after editing the Domain Name and Domain Netbios name.

You may also wanna change the forest mode to match the one in your environment if you already have an old DC.

# Windows PowerShell script for AD DS Deployment


Import-Module ADDSDeployment

Install-ADDSForest `

-CreateDnsDelegation:$false `

-DatabasePath “C:\Windows\NTDS” `

-DomainMode “Win2012” `

-DomainName “” `

-DomainNetbiosName “Moh10ly” `

-ForestMode “Win2012” `

-InstallDns:$true `

-LogPath “C:\Windows\NTDS” `

-NoRebootOnCompletion:$false `

-SysvolPath “C:\Windows\SYSVOL” `


Note: If you want to have a different Computer name, you will need to change that manually before you start the process below and restart after changing the computer name.

You will need to install the AD Domain Service management tools before you are able to run the powershell

Install-windowsfeature -name AD-Domain-Services –IncludeManagementTools


When the management tools are installed you can drag and drop the powershell file to powershell window and press Enter and as soon as you do that it will ask you for the SafeModeADministratorPassword.


After you press Enter it will start the installation process


When finished it will let you know that server is going to be restarted automatically.


After restarting the server, this is how the Full computer name became.


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