You can also configure destination folders. Select Content: You can install one or more content packs. Configurable Folders: You can configure folders for certain data. Installation Type: You can select an installation type, either Typical to accept the default configuration settings, or Custom to review the settings and decide whether to modify them.
Product keys are required for installation of Autodesk products and are used to differentiate products that are both sold independently and as part of a product suite. The same version of AutoCAD is in both software packages but the product key differentiates one package from the other. Please ensure you are using the correct product key for the Autodesk product and version you are installing.
Autodesk AutoCAD Civil 3D overview