You successfully installed ArcGIS Pro. This new 64-bit hyperthreaded application from Esri provides an effective tool to visualize a range of data, including 2D and 3D. This increased capability does require a greater amount of system resources to run effectively compared with the earlier ArcGIS applications.
ArcGIS Pro makes uses of a new licensing model. It uses a subscription model as opposed to traditional single user or concurrent licenses. The ArcGIS Pro licenses are tied to the annual maintenance for your traditional ArcGIS for Desktop licenses and are managed through your organization's ArcGIS Online account or Portal for ArcGIS.