Thanks for posting Error code 0x80070017 usually refers to bad media. If this is happening on both your flash drive and your burned DVD media I would recommend that you download the file again as you may have corruption in the ISO itself. So if possible, download the file again. After you download the new copy, try to burn it on a lower setting 4x or 8x. After you burn the disk on a lower setting with the new ISO, then see if you can install Windows 7.
Hope this helps. Post back and let us know if this gets your issues resolved.