Access to the path denied

Hello , 
In the webiste i have done , in the upload page i am getting the following error:

Access to the path 'C:\Users\RTG\Documents\Visual Studio 2012\WebSites\Musa\UploadStorage' is denied. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.  Exception Details: System.UnauthorizedAccessException: Access to the path 'C:\Users\RTG\Documents\Visual Studio 2012\WebSites\Musa\UploadStorage' is denied.  ASP.NET is not authorized to access the requested resource. Consider granting access rights to the resource to the ASP.NET request identity. ASP.NET has a base process identity (typically { ...