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From the options, you can locate the USB drive that is not being recognized.

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Next, expand the category Universal Serial Bus Controllers.

Type in 'devmgmt.msc' in the Run and then click the 'OK' button. Then open the 'Run' dialog box by pressing the 'Windows' and 'R' keys together. Follow these steps to uninstall the USB drive from the Device Manager. This is when your computer needs a revamp probably from corrupted or outdated files.

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Uninstall the USB Driver in Device Manager The first two quick fixes may not have yielded any fruit and you could be compelled to look into other solutions with in-depth performance. If it is recognizable, then you know that the problem lies with the earlier used computer and not the USB drive. Unplug your USB device from the computer in question and connect it to another PC. Trying out another PC may help arrest the situation.

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Possible causes may be a bad sector in the Windows OS, outdated drivers on your computer, or non-functional USB ports. Your PC may also be the root cause of the USB descriptor failure. It will be easy to pinpoint which particular port has a mishap. Repeat the procedure until you have tried all the USB ports. Plug your USB device in one port at a time.

By this, you will be able to determine whether the problem is due to the port or not.

In such a case, you need to check each of the available USB ports individually. In some cases, it could be that the device request descriptor failed because the USB port is malfunctioning. Try the USB device with a different USB port How Do I Fix an Unknown USB Device? 1 Quick Fix:

Windows OS may also be missing important updates and just refuse to recognize the USB.

If the USB drive contains bad sectors, it automatically gets damaged and will hinder further connectivity of the USB device with the computer.

If the USB device is using outdated or corrupted drivers.

The remedy is to disable this option in the 'Device Manager'

The computer may also turn off various devices when there is a power shortage.

Windows may also fail to find the description of your USV device.

A connection issue will result in a USB device that doesn't communicate properly with the computer.

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Let's see how to pinpoint the root cause of unknown USB device error. 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. What Causes the "Unknown USB Device" Error? And a plethora of causes throws you into such disarray. Check the portrayed message properties to identify the error at a point. This should be the starting point of you identifying the real problem. An additional 'device request descriptor failed' message may also be displayed. 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.Īs 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. And when it fails, it means it is not able to recognize a USB device. The USB device descriptor is the part that stores information for any of your USB gadgets. 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. 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. Apart from storage, they are also a good forum for transporting files from one device to another.

USB devices are important storage hubs that are used from time to time.