This was even easier.

Once you have enabled Windows Intune for Mobile Device Management its easy.

Step 1:

Connect your Windows RT Device to Windows Intune by clicking Start -> Type Company Apps -> Click Settings – > Enter your User Name and Password

Step 2:

Download the Company Portal App from Market Place. Once installed, start it and click “Enroll this device”


To distribute apps you need a sideloading key.

See this blog for sideloading

And/or this technet article for reference