Hence, you’ll see an error notice that says something like “Unknown USB Device (Device Descriptor Request Failed)” or “A Request for the USB Device Descriptor Failed.” When Windows cannot recognize a device or decide which driver to run, the iconic “Unknown USB Device (Device Descriptor Request Failed)” error occurs. The USB drivers are either corrupted or out of date.The USB device has been tampered with, corrupted, or infected with malware.You made errors when defining the USB driver settings.There was an error when you were replacing some PC components. ![]() Your most recent software upgrade encountered problems and corrupted the USB drivers.The following are the possible causes of this problem: ![]() The “Unknown USB Device (Device Descriptor Request Failed) error message might be caused by hardware or system-specific problems. What Causes the Arduino Device Description Error A device descriptor file is typically a text file that contains unique identifiers for the device in which it is stored, such as a mobile phone. It is a tiny file that is used to identify a device uniquely. A device descriptor, as the name suggests, is a file that describes the properties of a device.
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