5 Ways to Fix "Unknown USB Device Descriptor Request Failed"

Hey! If you want to fix an unknown USB device Descriptor Request Failed in Windows 11, or Windows 10, then follow this article.

If you are getting an error Unknown USB device descriptor request failed in universal serial bus controllers. This error indicates that some USB device of your computer unable to communicate with a connected USB device. The system requests device information but fails to respond to each other.

Potential Causes: Unknown USB Device Descriptor Request Failed Error

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There are several causes of the error some of the potential causes are the following-

USB Port Faulty, Malfunctioning Device, Cable Faulty.
Missing, Outdated, Corrupted Drivers.
Insufficient power on connected Port, etc.

How to fix “unknown USB device descriptor request failed” Windows 11, Windows 10?

1. Verify Hardware Issue

The first step to fix this error is to verify the USB port. If you have installed the USB cable on the front then connect it to the back panel USB port. Also, check the USB cable you have connected, its port is not damaged or the cable is not damaged.

If you have plugged in a USB device, check its power but the power is not on. You should check it again. If the issue persists, follow the next steps.

2. Update USB Drivers

If the driver is not updated then this error “Unknown USB Device Descriptor Request Failed” may occur. To update USB drivers follow these easy steps-

STEP#1. Navigate to Device Manager. To visit Device Manager > Navigate to run and type “compmgmt. msc” and enter.

STEP#2. Navigate to Device Manager and expand Universal Serial Bus Controller. Right-click on Unknown USB Device Descriptor Request Failed, and click on Update.

STEP#3. Click on Search automatically for drivers. It will automatically find drivers and install them. If the issue persists, follow the next steps.

3. Disable Fast Startup-Power Options

This error may occur if the Fast Power Startup option is enabled. To disable fast startup power options follow the below steps-

STEP#1. Navigate to the Control Panel and click on Power Options.

STEP#2. “Choose what the Power button does” from the left side of the Pane.

STEP#3. Now Click on Change settings that are currently unavailable.

STEP#4. Now Unchecked from Turn on Fast Start-Up. Click on Save Changes and restart your computer.

4. Turn off USB Power Saving

To turn off USB power-saving options follow these easy steps-

STEP#1. Navigate to Device Manager and expand Universal Serial Bus Controller.

STEP#2. Navigate to USB Root Hub right-click and select properties.

STEP#3. Click on the Power Management Tab. Now remove the check from Allow the computer to turn off this device to save power.

5. Run Hardware and Devices Troubleshooter

STEP#1. Navigate to Click on Start and select Settings.

STEP#2. Search Troubleshoot on Windows Settings and select Troubleshoot.

STEP#3. Click on Run the troubleshooter (Hardware and devices).

STEP4. After Scan Device, Click on Apply this Fix. Restart your computer and verify the issue.

Conclusion: Unknown USB Device Descriptor Request Failed”

If you have followed all the steps given above and still error Unknown USB Device Descriptor Request Failed”, then first verify if your USB device has any internal damage. To verify this, install the USB device on another computer or another device. If the Device is not working on another computer then it means that your USB device has internal hardware damage. If the internal part of the USB device is damaged, contact the service center.

If the same USB device works properly on another computer, it means that there is a problem with your computer. You can remove the USB device driver and install it again. We hope by following the above process your USB device will be converted from offline to online and you will be able to use your USB device properly.

5 Ways to Fix “Unknown USB Device Descriptor Request Failed”

Potential Causes: Unknown USB Device Descriptor Request Failed Error