Create a Windows 7 recovery CD on external hard/flash drive? basically, my windows 7 computer went through a windows update that epically ****** up. now windows 7 wont even boot on my laptop. i dont have any blank cd's/dvd's to burn an iso image to, but i have the iso image, and an external hard drive that i have partitioned. would it be possible to create the recovery cd on the hard drive partition, then boot from the external hard drive and run it? im really running out of ideas. also, the windows 7 usb/dvd tool wont work on ANY of my computers for some reason. it will only let me install to a flash drive, not my external hard drive, and then it formats my flash drive, and then tells me that its not compatible, so i need some other way to make it bootable.