Unknown USB Device: Device Descriptor Request Failure
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Unknown USB Device: Device Descriptor Request Failure

Encountering an Unknown USB Device: Device Descriptor Request Failure error? This issue often arises when a connected USB device isn’t properly recognized by your computer, due to corrupted drivers, faulty hardware, or connection problems. Learn how to troubleshoot driver updates, port checks, and device resets to resolve this frustrating connectivity glitch.
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Limitations: trial version offers an unlimited number of scans, free driver backup and rollback. Registration for the full version starts from USD 29.95. See more information about Outbyte and uninstall instructions. Please review Outbyte EULA and Privacy Policy

Encountering an Unknown USB Device: Device Descriptor Request Failure Error

This error typically appears in the Device Manager on Windows systems and indicates that the operating system cannot retrieve essential information about the connected device. The issue prevents the device from functioning correctly, leaving users unable to access their peripherals.

Causes of the Unknown USB Device: Device Descriptor Request Failure Error
  • Faulty USB Ports or Cables - Bent pins, frayed wires, or dirty ports can disrupt communication.
  • Outdated or Corrupted Drivers - Missing drivers or improper installation after Windows updates.
  • Power Management Settings - USB selective suspend setting may cut power to idle ports.
  • Corrupted Device Descriptor - Firmware corruption due to manufacturing defects or abrupt disconnections.
  • Incompatible Hardware - Older devices or USB-C hubs not complying with modern standards.
How to Fix the Unknown USB Device Error
  1. Check Physical Connections
    • Test different USB ports
    • Replace the cable
    • Try another computer
  2. Update or Reinstall USB Drivers

    Uninstall the device via Device Manager, restart, and let Windows reinstall drivers automatically.

  3. Disable USB Selective Suspend

    Navigate to Control Panel > Power Options > Change advanced settings > USB settings.

  4. Uninstall the Unknown USB Device

    Remove the device in Device Manager, restart, then reconnect.

Conclusion

Always inspect hardware first before moving to software solutions. Keep drivers updated and avoid abrupt device removal. If the error persists, consider using a powered USB hub or replacing faulty hardware components.

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