O RSAT-Setup (MSU) apenas adiciona as ferramentas à sua imagem do Windows, mas não as instala . Você tem que ativá-los sozinho ("Ativar recursos do Windows", basta digitar "Recurso" no menu Iniciar).
Você também pode usar a linha de comando:
dism /online /enable-feature /featurename:feature name
Por exemplo, adicione as ferramentas do ActiveDirectory:
dism /online /enable-feature /featurename:RemoteServerAdministrationTools
dism /online /enable-feature /featurename:RemoteServerAdministrationTools-Roles
dism /online /enable-feature /featurename:RemoteServerAdministrationTools-Roles-AD
dism /online /enable-feature /featurename:RemoteServerAdministrationTools-Roles-AD-DS
dism /online /enable-feature /featurename:RemoteServerAdministrationTools-Roles-AD-DS-SnapIns
dism /online /enable-feature /featurename:RemoteServerAdministrationTools-Roles-AD-Powershell
dism /online /enable-feature /featurename:RemoteServerAdministrationTools-Features
dism /online /enable-feature /featurename:RemoteServerAdministrationTools-Features-GP
você também pode obter toda a lista com:
dism /online /get-features | more