Use the actions in the task list to upgrade PowerPivot for SharePoint solutions, applications, and settings in the farm. ...

Use the actions in the task list to upgrade PowerPivot for SharePoint solutions, applications, and settings in the farm. This step is required after you run SQL Server Setup to upgrade the program files on the local computer. Although SQL Setup upgrades program files, it does not perform upgrade actions in the farm. You must either use this tool or run PowerShell script to complete the upgrade operation.