Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
How many Kobo readers have you tried and failed to have recognized by the Windows 10 computer in question?
Have you tried a different couple of USB ports on the computer, and a different USB cable to connect with ?
Have you another computer to try connecting the Kobe readers to?
Is there any reaction on the computer, such as the USB recognition 'klunk-klunk' sound, when you connect the reader(s) to it?
In a Windows computer, that is the sound that the computer makes when it recognizes the connection of a USB device to a USB port on the computer.