Network framework 3.5 features 2 and 3 not installed

While attempting to install a website (IIS) I cannot seem to get beyond this screen indicating  that IIS-Manager-Screenshot.jpgNetwork framework 3.5 features 2 and 3 need to be installed because I cannot click the NEXT to continue. Do they need to be installed to continue.

There are other more direct ways to set  up a website here but I want to be sure that this does not indicate some big problem before I continue.

I started here:

Server Manager > IIS
Select a server from the server pool
Then NEXT File and Storage Services (2 of 12 installed)

screenshot2.png
Is this a problem and if so, how or where do I find the rest of the .NET Features to install?

Installed is Windows 2012 R2 Server with ColdFusion 11 and SQL Server 2008 R2. Windows Update indicates all updates are installed, including optional updates.
Grover McBroomAsked:
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Cliff GaliherCommented:
Whether you need the other two features installed depends on the application code. If you click on the small arrow just to the left of the "1 of 3" lone (it is pointing to the right) the lost will expand and show you the names of the three features and which one is installed and let you fill the cheekbones to install the other two as desired.

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Grover McBroomAuthor Commented:
I just reinstalled everything and it works now. Not that I understand why.  Thanks for your help.
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Windows Server 2012

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