AYUDA!!! no me permite volver a instalar un programa

pido ayuda para de nuevo volver instalar autodesk revit 2014 porque como en la tarde descargue e instale autodesk revit pero me abrio una ventana emergente y sin nada de contenido en el transcurso de la instalacion y asi por una hora y desidi cerrar el programa instalandose y de nuevo instalarlo pero ya no me permitio y me aparecia esta ventana emergente que desia lo siguiente:

communication failure
download and installation has been interrupted by lost connection between the autodesk website and this computer. The likely causes are:
-The installation package was moved from the install location, which is not supported.
-The autodesk download website was closed or manually refreshed before the installer launched.
-A firewall has blocked the nerworks ports.
Please address these issues if possible, return to the wensite, and then click again on install Now, or use another download ,ethod: Download Now or Browser Download.

que es lo que puedo hacer para poder volver a instalar el autodesk revit 2014 por favor AYUDA!!!!!