Hi andybev1,
Apologies for the delayed response. It appears that either the driver files are not getting copied to the flash driver correctly or the file download is corrupt. I have given you the links after testing them myself and the files work correctly upon downloading. I am giving you alternate download links and file names so that you may download/copy them directly. The files to be copied are :
If the issue persists, please try downloading from an alternate computer. You may also try disabling the antivirus program before downloading and copying the files to flash drive.
Please reply with the findings. I would be glad to help you.