Changing the Forest Mode in Active Directory can be scripted. I find this useful when regression testing such tasks in a sandbox (e.g. restore image, automate login, change mode, run tests, etc). The script is very simple. First, you’ll import he ActiveDirectory modules: Import-Module -Name ActiveDirectory Then you’ll check for the mode prior to running: Get-ADForest | Format-Table ForestMode Then you’ll change the forest and domain modes (one per line): Set-ADForestMode –Identity “krypted.com” –ForestMode Windows2008Forest Set-ADDomainMode –Identity “krypted.com” –DomainMode Windows2008Domain Then you’ll report the result: Get-ADForest | Format-Table Name , ForestMode The end result could be as simple as three lines if just testing: Import-Module -Name ActiveDirectory Set-ADForestMode –Identity “krypted.com”…