Enabling .NET 3.5

Note: For 3-node setup, install on all nodes.
  1. Open Server Manager from : start→Server Manager.
  2. Select 2 Add roles and features.
  3. Click Next > four times.
  4. Check .NET Framework 3.5 Features.
  5. Click Next >.
  6. Click Install.
  7. When installation is complete, close the window.