How to verify .NET 3.5 is enabled?

  1. Click the Start button in Microsoft Windows
  2. Start typing turn windows features on or off
  3. Select the Turn Windows features on or off option
  4. Verify the both features are enabled - 
    .NET Framework 3.5 (includes .NET 2.0 and 3.0)
    ASP.NET 4.5 (or above) - This feature is located inside .NET Framework 4.5 (or above) Advanced Services