USB Device Descriptor.; 2 minutes to read; In this article. The device returns a USB Device Descriptor as defined in the USB Specification. The following table defines the prominent fields of the USB Device Descriptor. Some people have also reported that powering off their computer completely (not just a reset) and then turning it back on has corrected their Code 43 warning if it sources from a USB device. In the case of a laptop, turn it off and remove the battery, wait a few minutes, and then put the battery back in and start the computer.
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The Code 43 error is one of several Device Manager error codes. It's generated when Device Manager stops a hardware device because the hardware reported to Windows that it's having some kind of unspecified problem.
This generic message could mean there's a true hardware problem or it could simply mean that there's a driver error that Windows can't identify as such but that the hardware is being affected by it.
It will almost always display in the following way:
Fix USB Device Not Recognized. Device Descriptor Request Failed When I insert any USB Device I get the following message “The last USB device you connected to this computer malfunctioned, and windows does not recognize it.”The device manager has Universal Serial Bus Controllers Flag USB Device Not Recognized.Device Descriptor Request Failed. Off course, you will straightly head to Device Manager when a removable drive fails to get recognized by the computer. If so, in Device Manager you may notice that the USB is labeled as Unknown USB Device (Device Descriptor Request Failed). How to Fix Unknown USB Device (Device Descriptor Request Failed) In Windows 10? The laptop has been installed with clean installation of Windows 10. Therefore, there is no recovery point. When disabling the 'Intel(R) USB 3.0 eXtensible Host Controller - 1.0 (Microsoft)' the 'Unknown USB Device (Device Descriptor Request Failed' disappears but placing USB, the USB is not found. As per the official USB specification, a USB device with version 2.00 or greater must provide a BOS descriptor. In Windows 8, the USB 2.0 driver stack does not validate that requirement. As a result, a 2.00 or greater device without a BOS descriptor, enumerates successfully when connected to an EHCI controller.
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Details on Device Manager error codes like Code 43 are available in the Device Status area in the device's properties.
Device Descriptor Request Failed Windows 10
How to Use Device Manager to View the Status of Hardware in Windows
Device Manager error codes are exclusive to Device Manager. If you see the Code 43 error elsewhere in Windows, chances are it's a system error code, which you should not troubleshoot as a Device Manager problem.
The Code 43 error could apply to any hardware device in Device Manager, though most Code 43 errors appear on video cards and USB devices like printers, webcams, iPhones, and related peripherals.
Any of Microsoft's operating systems could experience a Code 43 Device Manager error including Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, and more.
How to Fix a Code 43 Error
Follow these steps, in order, to resolve a Code 43 error. Because this message is generic, standard troubleshooting steps come first.
Windows 10 Unknown Usb Device Descriptor
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