I downloaded the recommended 1.6.4 package and clicked install.cmd which opened up the cmd prompt to begin downloading all libraries and files. However, on each attempt the download stops (take my word its not the time delay to install each individual library). I'm not too educated on the new windows 8.1 firewall defaults so if anyone could help me out that would be great.
Additional info: after the first stall I can close the installer and re-run which starts the install where it had left off but the same issue will happen with later file downloads.