I want to make a bootable USB flash drive from which to install Windows 7. I noticed that after the first reboot, I don't se the screen that says "Press any key to boot from CD/DVD" and my computer boots from the flash drive. So here is my question. If i remove the USB flash drive after the first reboot, can the rest of the instalation process run without the flash drive, using the files that were copied on HDD before the first reboot? From what I heard, the instalation process copies all the files to the HDD during the "Expanding Windows file" stage, and doesn't need the instalation media after the first reboot. Is this true?