Hello folks, Still waiting for my iMac to be delivered, before it gets here was wondering whether it is possible to install Parallels/Windows 8.1 on an external hard-drive instead of the iMac itself? I almost don't want to install it on the iMac even though it has a 512GB flash storage drive. What do you guys reckon? Maybe it would be too slow if I install it on an external hard-drive. I know there's no way I will be filling up 512 GB of storage, on my PC I currently have used only 100 GB and that has everything I need.