Hello and thank you for reaching out to us with this question.
To clarify what the test actually does:
"This test locates all USB controllers, hubs, and devices attached to the system and verifies that
the system is detecting them correctly. It also verifies the devices are correctly communicating with the USB controller
by directly accessing each physical device. If any devices are present but not enabled, the test will log as Cannot Run.
If the test detects a problem with the USB controller communicating with USB devices, it will log as Failed."
So unless you have USB devices such as a USB Flash Drive or USB attached mouse connected to the USB port, the test will result in a "Cannot Run" status.
Please let me know if you have any further questions and I will be happy to help.