Fix Unknown USB Device (Device Descriptor Request Failed) in Windows 10

Abby Haines updated on Jan 03, 2019 to Storage Media Recovery | How-to Articles


Did you get an Unknown USB Device (Device Descriptor Request Failed) error in Windows 10? This page created quick and advanced fixed to help you get the problem resolved and make your device recognized. If data recovery is needed, free download EaseUS data recovery software to check, see if it can help!

Typical symptoms of unknown USB device error in Windows 10

Sometimes, when you plug a USB drive into your Windows 10 PC, it cannot be accessed and will show you USB device malfunctioned error with "The last USB device you connected to this computer malfunctioned, and Windows does not recognize it." message. If you go to the device manager to check and fix the problem, you will see that your device is labeled as Unknown USB Device (Device Descriptor Request Failed). 

Unknown USB Device (Device Descriptor Request Failed) error in Windows 10

Have you ever encountered a similar USB device not recognized in Windows 10 issue? Don't worry! This page created quick and advanced fixes to help you get the problem resolved.

Quick fixes to unknown USB device in Windows 10

In case that unknown USB device (device descriptor request failed) error happens because the USB port or USB device is damaged, please take the following steps before trying the advanced solutions.  

  • Try plugging in a working USB drive to check whether the USB port is working or damaged. 
    Plug your USB into a different PC to check whether the USB drive is working or damaged. 
If the device is damaged, you should take measures to repair the corrupted USB flash drive. Our advice is to recover data using EaseUS data recovery software and then format the disk for reuse.

To recover data from unknown USB device in Windows 10:

Step 1. Connect USB to your PC and run USB data recovery software.

  • Connect the USB flash drive on which your files to your computer and launch EaseUS USB data recovery software - Data Recovery Wizard on your PC.
  • Select your USB drive under External Devices and click Scan to start finding your lost files.
Select USB to scan and find lost files.

Step 2. Scan to find all lost files from USB.

  • EaseUS Data Recovery Wizard will thoroughly scan your USB flash drive and find all your lost data on it.
Scan USB drive to find lost files.

Step 3. Restore all lost files from USB.

  • After the scanning process, you can check and preview found USB files in this program.
  • "Deleted Files" is for you to find deleted files. And "Lost Partition Files" is quick access to find formatted data.
  • Double-click the files to preview and choose available ones, click "Recover" to save them to a secure location on your PC or other external storage devices
Restore lost USB data.

Advanced fixes to unknown USB device in Windows 10

#1 Use Hardware and Devices troubleshooter

  • Press Win+R, type Control Panel and hit Enter.
  • Inside Control Panel in the search box type troubleshooter and select Troubleshooting.
  • After that select Configure a device under Hardware and Sound and follow on-screen instruction.
  • Click on Apply this fix if any problem is found. 

If the unknown USB device error is triggered by hardware issues, it will no longer appear after you try the above steps. If not, you need to move on to the next method to find a fix.

#2 Try to Uninstall USB Drivers 

  • Open Device Manager (Right Click on Windows Logo and Click Device Manager).
  • Now find and expand Universal Serial Bus controllers. Now right click on USB drivers and click Uninstall. Do for all USB drivers one by one.
  • Restart your PC then Windows will reinstall the device automatically.

Did it solve the USB device (device descriptor request failed) error? If not, try the next fix. 

#3 Disable Fast Startup

  • Press Win+R, type Control Panel and hit Enter.
  • Click on Power Options and select Choose what the power buttons do in the left pane.
  • Click on Change settings that are currently unavailable.
  • Under Shutdown settings, uncheck the box next to Turn on fast startup (recommended). Then click on the Save changes button.

Restart your PC and see if the unknown USB device problem has been resolved in Windows 10. if it doesn't work, try to perform a system restore to get rid of this issue. 

#4 Restore Your PC To Previous Recovery Points

  • Press Win+R, type Control Panel and hit enter.
  • Now find and open the Recovery option.
  • Select System Restore, follow the on-screen guide and wait until all the recovery points are shown.
  • Restore your PC from the right recovery point.

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Frequently Asked Questions

1. Why cannot I recover 2GB data for free?

It is recommended to check the version installed is Free or Trial because they are different versions.

Trial has data preview function but cannot save any files, while the Free version enables to recover 2 GB files. The default free space is 500 MB and you may share the product on social media to get another 1.5 GB.

2. Why cannot the recovered files be opened?

A file is saved as 2 parts on the storage device: directory info (which is comprised by file name, time stamp and size info, etc.) and data content.

If the files with original file names and folder structures cannot be opened, one possible reason is the corrupted directory info. There is still a chance to recover the data content with the RAW Recovery method in our software.

3. Why isn't it suggested to recover the files back to the original drive?

The storage structure of the lost files would be altered or damaged by any changes on the drive. If you save the recovered files back to the same drive, the original data structures and data content would be corrupted or overwritten, which causes permanent data loss. So you should prepare another disk to save the files.

4. How can I check whether my data is recoverable or not before purchase?

The Free version helps you save 2GB files to better verify the recovery quality of our product before purchase.

5. How long does it take to scan the drive?

It strongly depends on the capacity of your hard drive and the performance of your computer. As reference,most drive recoveries can be completed in around 10 to 12 hours for a 1-TB healthy hard drive in general conditions.

About Data Recovery Wizard

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