Creating Domain Controller With Powershell

Normally, you can create a domain controller via Server Manager by adding AD Domain Services roles & features.

But, there's a better way!

Executing a 4-line powershell script will help you accomplish same goal.

You can change $sampledomain variable as in the following code snippet: 

$sampledomain = "iersoy.com"
$AdminPass = ConvertTo-SecureString "P@$$w0rd1" -asPlainText -force
Add-Windowsfeature AD-Domain-Services -IncludeManagementTools
Install-ADDSForest -DomainName $sampledomain -SafeModeAdministratorPassword $AdminPass -Confirm:$false

After executing this script in Administration mode in Windows Powershell, you'll be having a reboot.

Once you restart and Windows login screen appears, you shall see forest name starting with "IERSOY/{youradminusername}" .