I never understood why it's so complicated. On Linux, you can make a liveusb as easily as `cat liveusb.iso > /dev/sdX`. I imagine there is a powershell equivalent. There is a risk of writing to the wrong drive, so some kind of utility is needed. But the actual write is trivial. Why not make a win32 executable with the iso embedded so users only need to download one thing and then run it to write the USB media?