If the application is running on either Windows 7 or Windows Server 2008R2, special configuration steps are necessary to ...

If the application is running on either Windows 7 or Windows Server 2008R2, special configuration steps are necessary to enable automatic creation of the provider database.  Additional information is available at:  http://go.microsoft.com/fwlink/?LinkId=160102. If the application's App_Data directory does not already exist, the web server account must have read and write access to the application's directory.  This is necessary because the web server account will automatically create the App_Data directory if it does not already exist.