Before an installation of SCCM, you need to enable a couple of requirements in sccm 2012 server roles and features.

You can add these using the server manager snap-in but since you are a good admin, you know that you can use Powershell !

Here’s the commands I use in the script to enable the required roles before my SCCM installations :

• Get-Module servermanager
• Install-WindowsFeature Web-Windows-Auth
• Install-WindowsFeature Web-ISAPI-Ext
• Install-WindowsFeature Web-Metabase
• Install-WindowsFeature Web-WMI
• Install-WindowsFeature BITS
• Install-WindowsFeature RDC
• Install-WindowsFeature NET-Framework-Features
• Install-WindowsFeature Web-Asp-Net
• Install-WindowsFeature Web-Asp-Net45
• Install-WindowsFeature NET-HTTP-Activation
• Install-WindowsFeature NET-Non-HTTP-Activ

Run it in a PowerShell prompt and get a coffee while the magic happens, you earn it !

You can have more details here.

sccm 2012 server roles and features