Whenever you insert a USB into your laptop or PC, the USB device descriptor in your device will help the device to recognize the USB device that is connected. So at times, when your devices’ USB\Device_Descriptor_Failure occurs, then at that time when you insert any USB you will get an error message saying that the request for device descriptor failed.
Causes for the unknown USB Device Error:
How to Fix this Error?
So if you encounter an Unknown USB Device (Device Descriptor Request Failed) Touch Screen, then you could do the following steps to fix these issues.
Basic Method to Fix this Issue:
Following any of these basic troubleshooting can do wonders while fixing the error.
Scan PC for any Hardware Changes:
Step 1: Plug your USB device into your PC and then press windows key + X and choose the device manager.
Step 2: Now in the device manager, hit on the action tab and choose to scan for hardware changes from the list.
Wait a little more time and see if this can resolve any issues in your device.
Reinstall USB Driver:
A Request For the USB Device Descriptor Failed can be most probably fixed by reinstalling the USB driver.
Step 1: Press Windows key + X and then select on the device manager.
Step 2: Then click on the universal serial bus controllers section and right click on the unknown USB device (device descriptor request failed). Finally select the uninstall device option and once the uninstalling process gets completed, you can reinstall and see the issue being solved successfully.