Sometimes when this happens, it's likely a pc defender you have installed blocking the installer from downloading. Best way would be to directly download it, as Bloo has given you the link, or to disable your defender for the time being until everything is downloaded. (the installer itself is harmless, trust me!)
Hope everyone has helped you. If you received proper assistance and have no further issues, let me know so we can lock this thread for you! If you need it reopened for any reason, shoot me a PM. I will wait for confirmation. <3