and if I'm running Win 7?
You're probably SOL. I had to re-purpose and old laptop and slap Ubuntu on it to run the hftool.
I managed to get hftool working on a Win8.1 box, had to comment out some lines of code, still got errors, but it worked enough to list the die speed/voltages, and to write back out to flash.
You're probably SOL for the firmware upgrade.
Has anyone managed to get hftool working on a system with more than one Habanero board?