Getting "ERROR Transfer event for disabled endpoint or incorrect stream ring" while installing Ubuntu 16.04.1

I am working with a new FRED (Forensics Recovery of Evidence Device) computer at my institution and am having issues installing Ubuntu/Bitcurator onto our second hard drive. The first "bay" has Windows 8 and 98DOS on it, and we're trying to install Ubuntu/Bitcurator onto the second "bay."

I've followed the instructions provided here: https://www.ubuntu.com/download/desk...ick-on-windows ; and it seems to write the ISO image to the USB. I've even tried to write the image onto a DVD and boot that way, however, I keep on getting this error message briefly before the Ubuntu loading screen pops up and kind of cycles through aimlessly until it starts the process all over again:

[ 2.074246] xhci_hcd 0000:04:00.0: ERROR Transfer event for disabled endpoint
or incorrect stream ring
[ 2.074303] xhci_hcd 0000:04:00.0: @00000008694f7580 00000000 00000000 1b0000
00 01038001
[ 2.079871] xhcd_hcd 0000:04:00.0: ERROR Transfer event for disabled endpoint
or incorrect stream ring
[ 2.079924] xhci_hcd 0000:04:00.0: @00000008694f7a40 00000000 00000000 1b0000
00 02038001
[ 3.080201] sd 12:0:0:0: [sde] Asking for cache data failed
[ 3.080244] sd 12:0:0:0: [sde] Assuming drive cache: write through
[ 8.734985] usb 3-5: device descriptor read/64, error -110
[ 13.951227] usb 3-5: device descriptor read/64, error -71
[ 19.279631] usb 3-5: device descriptor read/64, error -110
[ 24.495884] usb 3-5: device descriptor read/64, error -71

We don't have anyone to consult with at our institution, so I am left trying to figure out our problems on this user-friendly forum.

For clarification purposes, the USB is connected to a 3.0 port located on the computer and is inserted before the machine is powered on. DVD is inserted before machine is powered on. I press F8 during the boot process which allows me to select from a variety of drives. I am positive I selecting the correct drives because, as I mentioned, the Ubuntu loading screen pops up, but not before the error message displays. I've tried downloading the Ubuntu desktop version and the Bitcurator version separately, but keep on getting the same error message. Perhaps someone has some insight??

Many thanks in advance.