Summary: Use a Windows PowerShell cmdlet from the ActiveDirectory module to check for the domain mode of your AD DS domain.

 How can I easily find out the domain mode of my Active Directory Domain Services (AD DS) domain by using a Windows PowerShell cmdlet?

 Use the Get-ADDomain cmdlet and select the domainMode property. It is also a good idea to select the DistinguishedName at the same time. This technique is shown here.

11:51 C:\> Get-ADDomain | select domainMode, DistinguishedName

                                domainMode DistinguishedName

                                ———- —————–

                         Windows2008Domain DC=Nwtraders,DC=Msft