Power BI Desktop is a personal computer-based Windows desktop tool used primarily for creating, producing, and distributing reports to the cloud. Power BI Desktop, used as an on-premise version of Power BI, can operate on PCs and function fully even when the system is not connected to the Internet. Users must connect to the Internet only when they wish to publish their reports to the cloud or share them with colleagues. Power BI Desktop is the initial application that users access when they log in to Power BI.