Hi - I know this is quite an old thread and I've done this sort of thing manually before but thought this would be quicker. However, with the drivers installed etc, I followed the steps and when I start it up whilst holding the volume key, it comes up asking if I'd like to boot into recovery, fastboot or normal.
In recovery, it does not detect on my PC (which I didnt expect, since no USB debugging is enabled on it). If I choose Fastboot, it detects and I've installed the driver. But still the software just sits there when I've clicked Download and looks like nothing is happening.