To all of you saying "it must work", "backwards compatible", etc, here's a direct quote of the message in Troubleshooting: "USB composite device is an older USB device and might not work with USB 3.0."
And here's the final message:
"USB Composite Device can't work properly with USB 3.0"
So--anyone knows an actual solution?
djack0771 :
Have windows 10 with usb 3.0 ports. not recognizing my external hard drive which needs a usb 2.0 port. can I fix this?