Extracted its the same size. Can I copy the extracted contents on to a formatted hard drive, change the bios to start on that drive, and will it boot from that or do I need to copy the extracted contents to a DVD-RW? Or will it boot from the ISO file? That seems unlikely. I don't have a USB drive that big handy. I just want to play with Win10 for a bit before I commit. I'll probably need better hardware and that might take a while to acquire. Using 16gb DDR3 with a i5 quad core 3.1 ghz CPU and its built on video.