What Causes the Unknown USB Device Error?

The error “Unknown USB device (device descriptor request failed)” can be caused by specific problems with the system or hardware. These are a few reasons for this error:

  • Your latest software update encountered a problem and eventually damaged the USB driver.
  • A failure occurred while replacing some parts of the PC.
  • An error occurred while configuring the USB driver settings on the PC.
  • The USB port is damaged.
  • The USB device is damaged, damaged, or infected with malware.
  • The USB driver is damaged or out of date.
  • The system BIOS needs to be updated.

Now that you know the cause of this error, you can fix it in the following six ways.

1. Quick Fixes

Before you can apply some of the methods detailed in this article, you can try the following quick tricks:

  1. Try restarting your PC and see if this solves your problem.
  2. Try plugging your USB device into a different USB port. If this solves your problem, the original USB port you used is probably bad.
  3. Connect your USB device to another computer. This will help you determine if the USB device is damaged or if there is a problem with the system controller.
  4. Windows fast startup settings are disabled. This setting can quickly start your PC and can cause various problems with PC performance. Disabling it and restarting your PC can help.

If these quick solutions do not solve your problem, please continue to the next method.

2. Scan Your PC for Hardware Changes

The next method you can try is to scan your PC for hardware changes. After the scan is complete, your PC may recognize the connected USB device.

  1. Plug the USB device into your PC.
  2. Open the Device Manager.
  3. Click the Action tab and select Scan for hardware changes from the list.
How to Fix the “Unknown USB Device (Device Descriptor Request Failed)” Error in Windows 10

Wait for the system to recognize all hardware changes to see if this solves your problem.

3. Reinstall the USB Drivers

The wrong USB driver may cause this error. To solve this problem, you need to uninstall unknown USB device drivers (device descriptor failed) and reinstall them.

  1. Open the Device Manager by pressing Windows Key + X and selecting Device Manager.
  2. Expand the Universal Serial Bus controllers section.
  3. Right-click the Unknown USB Device (Device Descriptor Request Failed) driver and select Uninstall device.
How to Fix the “Unknown USB Device (Device Descriptor Request Failed)” Error in Windows 10

After uninstalling the driver, restart the system. This will automatically reinstall the USB driver and help eliminate errors.

4. Update the Generic USB Hub Drivers

If the above method doesn’t work, you can try updating the generic USB hub driver. This USB driver may be out of date, so you have problems. Here’s how to update generic USB hub drivers.

  1. Open the Device Manager by pressing Windows Key + X and selecting Device Manager.
  2. Expand the Universal Serial Bus controllers section.
  3. Right-click the Generic USB Hub option and click the Update driver option.
How to Fix the “Unknown USB Device (Device Descriptor Request Failed)” Error in Windows 10

In the new window, select Search automatically for drivers.

Your PC will search for compatible drivers online. After the update is complete, plug in your USB device and check if this solves your problem.

5. Use the Windows Troubleshooting Tool

You can also use the Windows troubleshooter to resolve unknown USB device errors. This is a built-in Windows 10 tool that can help you find and fix various system problems.

  1. Type Troubleshoot in the Start menu search bar and selecting the Best Match.
  2. Select Hardware and Devices.
  3. Select Run the troubleshooter to start the process.

After the process is complete, close the troubleshooter and restart your PC to implement the repair.

6. Disable USB Selective Suspend Setting

Another way to solve your problem is to disable the USB selective suspend setting.

  1. Open the Control Panel by typing Control Panel in the Windows Search Bar and selecting the Best match.
  2. Navigate to System and Security > Power Options > Change plan settings.
  3. In the window that pops up, select the Change advanced power settings option.
  4. In the Power Options screen, locate and expand the USB settings.
  5. Expand the USB selective suspend setting and disable both the On battery and Plugged in options.
  6. Click Apply and then click OK.

Restart your PC to apply these changes. Plug in your USB device and check if this solves your problem.

Fixing the Unknown USB Device Error the Easy Way

At this point, the error “Unknown USB device (device descriptor request failed)” should be resolved. This is a frustrating error, but most USB problems will be resolved after reinstalling the USB driver.