Tentando instalar uma seleção de recursos do Windows do IIS por meio de dism :
dism /NoRestart /ONLINE /Enable-Feature /All /FeatureName:IIS
-ASPNET /FeatureName:IIS-NetFxExtensibility /FeatureName:WCF-HTTP-Activation
dá o erro
Error: 0x800f0906
The source files could not be downloaded. Use the "source" option to specify the location of the files that are required t o restore the feature. For more information on specifying a source location, see http://go.microsoft.com/fwlink/?LinkId=243077.
The DISM log file can be found at C:\WINDOWS\Logs\DISM\dism.log
Os recursos IIS-NetFxExtensibility , IIS-ASPNET e IIS-NetFxExtensibility são para .NET 3.5 e são restritos por motivos de segurança.
Eu realmente queria o .NET 4.5 mesmo assim, então consertei 45 com os nomes dos recursos
dism /NoRestart /ONLINE /Enable-Feature /All /FeatureName:IIS
-ASPNET45 /FeatureName:IIS-NetFxExtensibility45 /FeatureName:WCF-HTTP-Activation /FeatureName:WCF-HTTP-Activation45
Tags dism windows-server-2012