How to fix device descriptor request failed (unknown usb device) in windows 10

The Unknown USB device (device descriptor request failed) in Windows Device Manager on HP và Lenovo would stop your USB devices like an app android mobile, flash drive or pen drive from being properly detected for use in Windows 10, 8 or 7, but we finally resolved the USB not recognized problem for you.

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Unknown USB Device (Device Descriptor Request Failed) is a Windows Device Manager error under the "Universal Serial Bus controllers" section. The current device status is demonstrated as "Windows has stopped this device because it has reported problems. (Code 43). A request for the USB device descriptor failed."


What Is a Device Descriptor?

The device descriptor (USB_DEVICE_DESCRIPTOR) is the root of the descriptor tree and contains basic device information. idVendor & idProduct of which are the unique members for the Windows operating system khổng lồ identify the connected device & determine which device driver must be loaded.

Anyway, we don"t care about the tech-savvy"s jargon, but only get khổng lồ know - how vì chưng I fix the device descriptor when the request failed?

How bởi I Fix Device Descriptor Request Failed?

Driver issues take the most responsibility for an unknown USB device on HP, Lenovo, Dell, và many computers. As you"ve concerned, the device descriptor request failed error is a generic unknown USB problem, so it"s reasonable lớn suspect a driver issue at present. The USB device here mentioned can be a flash drive, pen drive, Android, digital camera, & any digital gadget that is supposed to use on a Windows machine.

In the next part, we mainly show you the common troubleshooting methods for the device descriptor request failed error in Windows 10. As a matter of fact, Windows 7 & Windows XP users are also having the same problem. Never mind applying the solutions khổng lồ your own Windows operating system. They"re all-OS-versions compatible.

3 Quick Fixes khổng lồ Unknown USB Device (Device Descriptor Request Failed) in Windows 10

In case that unknown USB device (device descriptor request failed) error happens because the USB port is not working or USB device is damaged, the following three fixes are significant khổng lồ try before going lớn further troubleshooting.

1. Try plugging in a working USB drive to kiểm tra whether the USB port is working or damaged. 2. Plug your USB into a different PC to kiểm tra whether the USB drive is working or damaged.

Step 1. Choose the USB drive khổng lồ scan

Launch Data Recovery Wizard và choose your USB drive where you lost important files. Click "Scan" to lớn start.


Step 2. Check and preview USB drive data

When the scanning is finished, you can quickly locate a specific type of file by using the Filter feature as well as the tìm kiếm option.

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Step 3. Restore flash drive data

After checking và finding lost USB drive files, click "Recover" lớn restore them. You shall save the found files khổng lồ a safe location on your PC rather than khổng lồ your USB drive.


5 Advanced Fixes to Unknown USB Device (Device Descriptor Request Failed) in Windows 10

Due to lớn the uncertainty of the exact factor that causes your USB drive malfunctioning in this way, the demonstrated solutions are not all supposed to take effect. Hence, take some patience to lớn implement each solution until the problem solved.

1. Use Hardware and Devices troubleshooter

Press Win+R, type Control Panel và hit Enter.Inside Control Panel in the search box type troubleshooter & select Troubleshooting.After that select Configure a device under Hardware & Sound and follow the 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 lớn move on to lớn the next method lớn find a fix.

2. Try lớn Uninstall USB Drivers 

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


Some people would find that uninstalling và reinstalling the driver only works once. The next time they plug in the drive, and the device descriptor request failed appears again. According to lớn an experienced user who has been suffering the problem for long but finally found the cause of why this method does not work & how to make it work.

I found that going into Device Manager and "Uninstalling the device", và then plugging in the USB I had been using at the time, before telling Device Manager to lớn scan for hardware changes in the USB ports fixed this problem. I think it was because I"ve had this USB receiver for a mouse plugged into it for so long, that when I removed it from the port, the computer didn"t recognize that it"d been removed and got caught in a loop trying lớn identify a device that wasn"t there anymore, locking the USB port down. Works fine now.

3. Disable Fast Startup

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


4. Turn on Plug và Play in Windows Services

Press Win+R, type services.msc and hit Enter.In Windows Services, find the name Plug & Play. Double-click on it to xuất hiện the Properties window.If the Startup type is currently Manual and the Service status is Running, try lớn turn it to Disabled và Stopped, save the changes; later change the Disabled & Stopped to ManualRunning again. Click OK và Apply.If the Startup type is currently Disabled và the Service status is Stopped, switch lớn Manual and Running. Click OK & Apply.


Restart your PC và see if the unknown USB device problem has been resolved in Windows 10. If it doesn"t work, try lớn perform a system restore to get rid of this issue. 

5. Restore Your PC khổng lồ Previous Recovery Points

Press Win+R, type Control Panel & hit enter.Now find and mở cửa 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.