The only thing it's still missing compared to bash in that regard is that it won't work on files in your path, only in the current directory. I wonder if this fixes it. I can't check, because I can neither install the preview nor watch the video, as my computer is acting really really strange. I'm currently working in Knoppix, and it's gone for about 25 minutes now without crashing, which is the best it's done all day. In fact, the previous three attempts in Knoppix all crashed within 30 seconds. At least Windows consistently gives me 3 minutes before giving up.
Looks like a hardware defect, yes, although I can't explain why it's suddenly gone away it seems. If it lasts till the half hour I'm going to boot Windows back up and try my luck with that one more time.