GUI Method:
Open up Active Directory Domains and Trust (can be located in Administrative Tools), right click on Domain and click on Properties
Domain functional level and Forest functional level can be seen in General tab of Properties.
Powershell Method 1:
Open up powershell and run following cmdlets
Import-module ActiveDirectory
Then,
get-addomain | format-list domainmode
get-adforest | format-list forestmode
Output would look like below
Powershell Method 2:
Get-ADForest - Gets an Active Directory forest.
ForestMode : Windows2012Forest (Shows the current Forest functional level)
Get-ADDomain - Gets an Active Directory domain.
DomainMode : Windows2012Domain (Shows the current Domain functional level)
- end of the article -
See Also:
Understanding Domain and Forest Functional Levels
Raise the Forest Functional Level
How To Revert Back or downgrade Windows Server 2008 R2 Forest and Domain functional Level
Active Directory Cmdlets in Windows PowerShell
What is the Impact of Upgrading the Domain or Forest Functional Level?