When you install Windows, it allows you to skip without adding a software key, and activate it later. If you are receiving an error code 0xC004F014 with the message as :

The Software Protection Service reported that the product key is not available

Since this is an Enterprise Volume Licensing Error, you need to install a MAK product key or install a KMS Setup key found in \sources\pid.txt on the installation media. You can also get in touch with your IT admin to ask for a product key or he can activate that computer for you.