I have all my flash drives and data for the operating systems on the second drive behind the system hard drive. I have one for windows, one for lates OS 6.0, plus the micro_lite, and one for old micro_lites etc. You can create a flash drive by using windows import. Go to tools, burn an image of the ISO, and then select the files and choose "burn to disk." If you are still on windows, create a bootable disk for your cd-roms then create a flash drive from there. Make sure when you create the flash drive that you leave space in the drive for the operating system file just in case you need to fix it or reinstall it.
If you are on windows 7-8 and the latest OS version you can just install the ISO onto your hard drive. Then if you want to flash a bootable drive from an ISO, you see how to create a bootable drive from your ISO.
If you are on windows 2000 or XP and know how to create a bootable drive from an ISO, then you should be alright. If you cannot create a bootable drive from the ISO file, then you should try to download the latest version from the creators website. It might have a fix for your drive. d2c66b5586