Repair PowerPivot for SharePoint
You can use the PowerPivot Configuration Tool to repair an existing installation of PowerPivot for SharePoint. The tool reads the configuration settings for a local PowerPivot for SharePoint instance and provides actions for re-configuring a setting that is inconsistent with a PowerPivot for SharePoint installation. For example, if you stop a service or retract a solution, the tool will offer actions to start the service and deploy the solution.
For more information, see Configure or Repair PowerPivot for SharePoint 2010 (PowerPivot Configuration Tool).
See Also
Drop a SQL Server 2014 Installation
Install PowerPivot for SharePoint 2010
Uninstall an Existing Instance of SQL Server (Setup)
PowerPivot for SharePoint 2010 Installation