You can tell if this is the problem by looking at the copy of Kai Linux you downloaded. If it looks something like the image below then that means .iso files are associated with WinRAR and you need to change that setting I mentioned above:
You can tell if this is the problem by looking at the copy of Kai Linux you downloaded. If it looks something like the image below then that means .iso files are associated with WinRAR and you need to change that setting I mentioned above: