.NET Framework 3.5 feature install fails on Windows Server 2012

    While attempting to install .NET Framework 3.5 from Add Roles and Features fails with the error:  "The source files could not be found".  Attempting to install from the .NET 3.5 Framework install fails pointing you back to Add Roles and Features.

    You have two options:

    1.  From an elevated Command Prompt, run the following:

    /online /enable-feature /all /featurename:NetFX3 /Source:D:\sources\sxs /LimitAccess

    2.  From within Add Roles and Features, after you select the feature, down at the bottom, select "Specify an alternate source path", enter the following:


    NOTE:  The above assumes the DVD drive is D:, if not, change the path drive letter to reflect the appropriate drive letter.

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