May 13, 2026 • Filed to: USB Recovery • Proven solutions
TL;DR:
To resolve the "Unknown USB Device (Port Reset Failed)" error on Windows, first isolate physical hardware faults by rebooting the computer, testing different USB ports, or connecting the drive to another PC before modifying system configurations.
● Open Device Manager using the devmgmt.msc command to right-click and uninstall the unrecognized USB drive under Universal Serial Bus Controllers, allowing Windows to automatically reinstall a clean driver upon restarting.
● Navigate to the advanced power options in the Control Panel and disable the USB selective suspend setting to prevent the operating system from incorrectly cutting power to the USB connection.
● Update the Generic USB Hub driver manually from the Device Manager list or update the system BIOS to resolve persistent compatibility conflicts that trigger an error code 43.
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Many users have experienced such a downfall in the quest to fully utilize their computers. It happens that sometimes, you plug a USB device but instead of functioning well, you are greeted with device request descriptor failed - pop up message. So devastating! Worry no more because that is exactly what this post is going to help you overcome.
USB devices are important storage hubs that are used from time to time. Apart from storage, they are also a good forum for transporting files from one device to another. Talk of being small in size, easy to handle, and larger in storage capacity with numerous categories such as memory card, USB flash drive, pen drive, among others. So, you can imagine the magnitude of frustration when you encounter the device request descriptor failed at the eleventh hour into accessing a much-awaited file.
The USB device descriptor is the part that stores information for any of your USB gadgets. And when it fails, it means it is not able to recognize a USB device. The result is error messages such as "one of the USB devices attached to your computer has malfunctioned, unknown USB device or tries reconnecting the device" among other baring messages.
So, what's the warning sign?
As soon as you open the 'Device Manager', you should see the USB device that's displayed under Universal Bus Controllers marked with an exclamation mark, yellow in color. An additional 'device request descriptor failed' message may also be displayed. This should be the starting point of you identifying the real problem. Check the portrayed message properties to identify the error at a point. And a plethora of causes throws you into such disarray. Check them out on our next topic!
Several causes lead to this problem. Identifying the exact cause is the first step into helping you determine the right method to solve the issue on your Windows or other devices. Let's see how to pinpoint the root cause of unknown USB device error.
When you face the unknown USB device issue, you can try the following 3 methods to quickly fix the problem.
Sometimes, the complicated problem can be solved simply by rebooting the computer. So if you have the Unknown USB Device Descriptor Request Failed error, the first thing you should do is to reboot your computer.
In some cases, it could be that the device request descriptor failed because the USB port is malfunctioning. In such a case, you need to check each of the available USB ports individually. By this, you will be able to determine whether the problem is due to the port or not.
Plug your USB device in one port at a time. Repeat the procedure until you have tried all the USB ports. It will be easy to pinpoint which particular port has a mishap.
Your PC may also be the root cause of the USB descriptor failure. Possible causes may be a bad sector in the Windows OS, outdated drivers on your computer, or non-functional USB ports. Trying out another PC may help arrest the situation.
Unplug your USB device from the computer in question and connect it to another PC. If it is recognizable, then you know that the problem lies with the earlier used computer and not the USB drive.
The first 3 quick fixes may not have yielded any fruit and you could be compelled to look into other solutions with in-depth performance.
This is when your computer needs a revamp probably from corrupted or outdated files. Follow these steps to uninstall the USB drive from the Device Manager.
Scanning the hardware changes on your computer can solve the unknown USB device port reset failed problem sometimes. Follow this way:
When the scanning process completes, restart your computer and check if the issue is fixed.
This is another way to fix device descriptor request failed that will also prevent your USB device from powering down.
The Hardware and Devices Troubleshooter on Windows can also help you solve the unknown USB device error within a few clicks. Here are the steps:
Wait for it to complete. Then, restart your computer and test whether the unknown device descriptor request failed error is fixed.
If the methods introduced above don’t work, another method you can try is disabling the USB selective suspend settings. Follow this:
The same, restart your computer and test if the problem is fixed.
The last method you can try to fix the unknown usb device error is to update your system BIOS. You can update it from the manufacturer’s website directly or create a bootable drive, then update it with the bootable device.
In a nutshell, it is possible to outrightly perform a unknown USB device fix for your windows 7 or any other higher version. The above quick-fix options are simple and do not need any high-tech know-how. However, there are further advanced fixes that will dig deeper into your system and solve the unknown USB device almost instantly. So, you can try these methods according to your own need.
What does the error message "Unknown USB Device Port Reset Failed" mean?
What can cause "Unknown USB Device Port Reset Failed" error?
What should I do if my computer detects an unknown USB device?
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