After launching Outlook 2007 or 2010, you receive the following error message: "Cannot start Microsoft Outlook. Cannot open the Outlook window. Invalid XML, the view cannot be loaded." Solution To fix this error, run the following command from the Run box or click start and type below command in windows 7. Outlook.exe /ResetNavPane What does Outlook.exe /ResetNavPane do? It clears and regenerates the Navigation Pane for the current profile. Basically, it removes all shortcuts and favorite folders from the Navigation Pane. Not a big deal, as most users leave the default favorite folders in place, but just something to consider.