Fixes For Unknown USB Device (Device Descriptor Request Failed) in Windows 7/8/10

By | November 10, 2017

Fix Unknown USB Device Error

Summary: Got error message USB device not recognized in Windows 7/8/10 , labeled as Unknown USB Device (Device Descriptor Request Failed)? Well, do not worry! This page will help you to troubleshoot the problem and fix Unknown USB Device (Device Descriptor Request Failed) error and make your device recognized again. Also, if data recovery is required then use USB data recovery solution.

When it comes to transfer data from one device to another device, then USB (Universal Serial Bus) devices is something that comes first in our mind. USB devices like pen drive, USB flash drive, memory sticks are convenient because they are portable, small in size and one can easily carry huge amount data from one place to another and can easily transfer data from one device to another.

But sometimes, your Windows PC may not recognize your USB device and throw error message Unknown USB Device (Device Descriptor Request Failed) or Windows has stopped this device because it has reported problems. (code 43) a request for the USB device descriptor failed and thereby you can’t take advantages of that USB device.

We faced this problem on Windows 10 PC, after plugging USB device and we got following notification:

USB device not recognized

The last USB device you connected to this computer malfunctioned, and Windows does not recognize it.

Fix Unknown USB Device Device Descriptor Request Failed In Windows 10

Then we checked the same device in Device Manager. The device listed under Universal Serial Bus Controllers reading as Unknown USB Device (Device Descriptor Request Failed) with a yellow exclamation mark on its entry.

solve unknown usb device

 

Then we checked its properties. It shows the following;

Windows has stopped this device because it has reported problems. (Code 43)

A request for the USB device descriptor failed.

Solved Unknown USB Device Device Descriptor Request Failed In Windows 7/8/10

Here have look at practical scenario:

Fix for Unknown USB Device (Device Descriptor Request Failed)?

Product Name: Pavilion G6

Operating System: Microsoft Windows 10 (64-bit)

Can any help with this problem? Have a Pavilion G6 with no USB 3.0 as I am aware.

USB (3 ports) not working.However, when the plugged the mobile, the mobile does get charged.

Device Manager shows “Unknown USB Device (Device Descriptor Request Failed)”.

Running Windows 10 64 bit. Tried everything like uninstalling, updating etc as the information on the internet. Also, updated the drivers using Driver Easy but still getting the error.

Any suggests, please?

Thanks in advance.

Sanil Sukumaran.

                                                                                 – Original Post From HP Support Forum

Never mind, there are ample of solution that you can follow to fix Unknown USB Device (Device Descriptor Request Failed) error on Windows PC.

But before proceeding further to resolve the issues, it is also important to know the possible causes for the occurrence of unknown USB device error.

Additional Reading: Complete Steps To Fix ‘USB Drive Detected But Not Accessible’ Issue

Possible Causes Responsible For Unknown USB Device (Device Descriptor Request Failed) Error

If you talk about the cause, they could be miscellaneous. This problem may occur if any of the following situations exist:

  • Malfunctioning of hardware might be the cause.
  • Currently loaded USB driver has become corrupt or unstable.
  • May be your drivers are outdated.
  • May be your computer requires an update for issues that was creating problem with an external USB hard drive and Windows.
  • Windows might be missing other important hardware or software updates.
  • May your USB controller have become corrupt or unstable.
  • May be your external drive entering selective suspend.
  • Your computer motherboard might require updated drivers.

Though whatever may be the causes behind this issue, you can try any of the following solutions mentioned below to solve Unknown USB Device (Device Descriptor Request Failed) error.

Additional Reading: Learn To Fix/Remove/Format “Write Protected” USB Drive

Solutions To Fix Unknown USB Device (Device Descriptor Request Failed) Error in Windows 7/8/10

Note: All below mentioned solutions is not limited to Windows 7, 8 or 10. You can get this error on any Windows system and hence, the solution mentioned in this article allies to all of them.

Common Troubleshooting Fixes For Unknown Device

In case if unknown USB device (device descriptor request failed) error occurs due to damaged USB device or USB port, then you can fix this issue by following below mentioned tips:

  • Plug-in the working USB device to PC in order to check whether USB Port is working or it is damaged.
  • Connect your USB device to another computer to check USB device is working or it is damaged.

Additional Reading: Learn To Fix/Remove “Read Only” Error of USB, SD Card & Hard Drive

Advanced Solutions To Fix Unknown USB Device Error in Windows PC

Note: Before you proceed further to follow the advanced fixes, you should take precaution beforehand. My recommendation is to restore data from the USB device first, by using Photo Recovery which is an appropriate USB Drive data recovery tool that will help you to restore all digital multimedia files such as photos, videos and audio files from the USB device.

Free Download USB Drive Data Recovery Tool by Clicking on Below Button:

Coming back to the topic, here is the solution to resolve the Unknown USB Device or USB device not recognized error:

Solution #1: Use Hardware and Devices Troubleshooter

  • On your PC click START > Type RUN in search bar and hit ENTER.
  • Run dialog box will get open, now type Control Panel and hit OK.

  • Inside Control Panel in the search box type troubleshooter and select Troubleshooting.

  • Now select ‘Configure a device’ under ‘Hardware and Sound’ and follow on screen instruction.

  • If any problem found, then click on ‘Apply this fix’.

This will solve any issue which troubleshooter is capable of, if it doesn’t then follow the next solution.

Additional Reading: How To Recover Files From USB Drive Without Formatting It?

Solution #2: Fix Unknown Device Issue By Uninstalling USB Drivers

  • On your PC click START > Type RUN in search bar and hit ENTER.
  • Run dialog box will get open, now type devmgmt.msc and hit OK to open Device Manager.

  • Find and expand Universal Serial Bus controllers.

  • Connect your USB device which is throwing unknown usb device/not recognized by Windows.
  • You will see an Unknown USB device (Device Descriptor Request Failed) with yellow exclamation mark in Universal Serial Bus controllers.
  • Now right click on it and click Uninstall.

  • Restart your PC and the drivers will get installed automatically.

Did this solution help you to fix USB device (device descriptor request failed) error? If not, then move on to next solution.

Additional Reading: [Fixed]: “Windows was Unable to Complete the Format” Error on USB, Memory Card & Hard Drive

Solution #3: Disable Fast Startup

  • On your PC click START > Type RUN in search bar and hit ENTER.
  • Run dialog box will get open, now type Control Panel and hit OK.

  • Inside Control Panel, in the search box type Power options.
  • Now select the ‘Change what the power buttons do.

  • Click on ‘Change settings that are currently unavailable.’

  • Under Shutdown settings, uncheck the box next to Turn on fast startup (recommended).

  • Next click on Save changes and Reboot.

Now check unknown USB device issue has been solved in Windows PC. If it doesn’t, then follow the next solution.

Additional Reading: [Solved]: USB Drive Error “Please Insert A Disk Into Removable Disk”

Solution #4: Change the USB Selective Suspend Settings

  • Right click on battery icon and select ‘Power Options

  • Select Change plan settings.

  • Next click on Change advanced power settings.

  • Find USB settings and expand it.
  • Expand USB selective suspend settings and Disable both On battery and Plugged in settings.

  • Click Apply and Reboot.

Now check your problem is solved or not. If not, then perform system restore.

Additional Reading: Learn To Remove Virus From SD Card Without Formatting It

Solution #5: Restore Your PC to Recovery Points

  • On your PC click START > Type RUN in search bar and hit ENTER.
  • Run dialog box will get open, now type Control Panel and hit OK.
  • Inside Control Panel, in the search box type Recovery.
  • Select System Restore and follow the onscreen instruction and wait till all the recovery points are shown.
  • Restore your PC from the right recovery point.

For more information on System Restore, please check: Recovery options in Windows 10.

Solution #6: Update Generic USB Hub

Updating generic USB hub can also help you to fix device descriptor request failed error.

Here follow the steps:

  • Press Windows Key + R together to open RUN
  • In RUN box type ‘devmgmt.msc’ and hit ENTER to open Device Manager.

  • Locate and expand Universal Serial Bus controllers.
  • Right-click on “Generic USB Hub” and click on ‘Update Driver Software’.

  • After this click on the ‘Browse my computer for driver software’

  • After that select the ‘Let me pick from a list of drivers on my computer’.

  • SelectGeneric USB Huband then click on Next.

  • Now simply wait for the installation to get complete and then click on Close.
  • Repeat the above steps for all the ‘Generic USB Hub’ displayed under the Universal Serial Bus controllers.
  • If the error still exists then follow the same steps again but this time for Universal Serial Bus Controllers.

This solution must fix your error of “USB Device Not Recognized. Device Descriptor Request Failed”.

Additional Reading: Hard Drive Shows 0 Bytes With No Files/Folders? Here’s How To Fix It!

Bonus Tips: Related USB Issues and Solutions

1. What do you do when USB device is not recognized?

You can follow the above-mentioned solutions to fix USB device not recognized issue.

But beside that you can follow below solutions as well.

Remove the Power Supply

This method will work, if the problem is caused due to power supply.

  • Switch Off the Power Supply or unplug the power cable from PC.
  • After few minutes reconnect the power supply.
  • Restart the PC and then connect your device to USB port.

Install The Latest Windows Updates

Installing the latest Windows updates will also install the latest device drivers for your USB external hard drive.

Here how to do it:

  • On your PC, click on Start and then type Windows Update in the search box and then click on Windows Update
  • From here you can install all the Windows update.
  • If prompted, then reboot your PC.

For more solutions you can check out – Fixed: USB Device Not Recognized or Not Detected Issue

2. How can I see what is connected to my USB ports?

Here follow the below steps to check what is connected to USB ports (the steps are shown from the PC having Intel core processor):

  • Connect a USB device (USB mass storage device) to one of the USB port of your PC.
  • Now go to Device Manager, click on View and then click on Devices by connection.

see what is connected to my USB ports

  • Now in the Device by connection view, you can check the USB Mass Storage device under Intel® USB 3.0 eXtensible Host Controller.

How can I see what is connected to my USB ports?

 

3. How can I repair my USB flash drive?

Well, people generally repair their USB flash drive when it gets corrupt, not recognized or not detected by PC or when USB flash drive gets damaged.

So, if you are also looking to repair corrupted USB flash drives, then please follow the solutions and their steps mentioned in this post: How To Repair a Corrupted Flash Drive Using CMD (Command Prompt)

4. How Do I Reset My USB Ports?

Well, this is another solution that can help you to reset your USB port as well as it can fix USB device not recognized issue connected to USB port of Windows PC.

You can use Device Manager to scan for hardware changes.

Here follow the below-steps:

  • On your PC click Start and then type devmgmt.msc in search box and then hit ENTER.
  • This opens Device Manager. Now click on Computer so that it gets highlighted.
  • Now click on Action and then select “Scan for hardware changes”.
  • Check the USB device whether it is working or not.

For more solutions, you can visit: USB port may stop working after you remove or insert a USB device

 Conclusion

I hope from all the mentioned solutions, you might have able to fix your unknown USB device (Device Descriptor Request Failed) error or Windows has stopped this device because it has reported problems. (code 43) a request for the USB device descriptor failed. Also if you have lost your media files such as photos, video or audio files from USB drive, then you must have applied Photo Recovery software to recover them back.


Free Download Digital Media Recovery

Summary
Fixes For Unknown USB Device (Device Descriptor Request Failed) in Windows 7/8/10
Article Name
Fixes For Unknown USB Device (Device Descriptor Request Failed) in Windows 7/8/10
Description
[Solved] Unknown USB Device (Device Descriptor Request Failed) in Windows 7/8/10. 1: Use Hardware and Devices Troubleshooter. 2: Uninstall USB Drivers. 3: Disable Fast Startup and more. 4: Change the USB Selective Suspend Settings. 5: Restore Your PC to Recovery Points. 6: Update Generic USB Hub.
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