If you attach an external USB device to Windows 10 and get an error message saying “USB not recognized. Device Descriptor Request Failed” then you are at the right place as today we will see How to fix this error. The main issue is that you won’t be able to access your USB device because of this error message. If you will click on the error notification or you will go into device manager then right-click on the malfunctioned device and select Properties you will see the error message “The last USB device you connected to this computer malfunctioned, and Windows does not recognize it.”
One more thing to note here that the device which malfunctioned will be labelled as “Unknown USB Device (Device Descriptor Request Failed)” with a yellow triangle which will confirm that your device is not working properly or USB is not recognized as it is labelled as Unknown USB Device. So without wasting any time let’s see How to Fix Unkown USB Device (Device Descriptor Request Failed) with the help of the below-listed tutorial.
What is Device descriptor request failed Error?
The USB device descriptor is responsible for storing information related to various USB devices and recognizing these USB devices in future when connected to the system. If the USB is not recognized, then the USB device descriptor is not working properly on Windows 10 hence you will face the Device Descriptor Request Failed error. Depending on your system configuration, you may face one of the following error messages:
USB device not recognized. The last USB device you connected to this computer malfunctioned, and Windows does not recognized. One of the USB devices attached to this computer has malfunctioned, and Windows does not recognize it. Try reconnecting the device. If Windows still does not recognize it, your device may not be working properly. Unknown USB device (device descriptor request failed) code 43 USBDEVICE_DESCRIPTOR_FAILURE
Causes of Device Descriptor Request Failed Error
- Outdated, corrupted or incompatible USB device drivers
- Virus or malware has corrupted your system.
- USB port is malfunctioned or not working properly
- BIOS is not updated which might cause this issue
- USB device might be damaged
- Windows cannot find the description of the USB device you might be using
Fixa enhetsbeskrivningsbegäran misslyckades (okänd USB-enhet)
Se till att skapa en återställningspunkt ifall något går fel.
Method 1: Change USB Selective Suspend Settings
1. Högerklicka på battery icon on Taskbar och välj Strömalternativ.
2. Next to your currently active Power Plan, click on Ändra planinställningar.
3. Klicka nu Ändra avancerade ströminställningar.
4. Hitta USB-inställningar och sedan klicka på Plus (+) ikon att expandera den.
5. Again expand USB-selektiva inställningar för inställning and make sure to select Disabled for both “On Battery” and “Plugged in”.
6. ClickApply followed by OK och Startas om your PC to save changes.
Method 2: Use Hardware and Devices troubleshooter
1. Tryck Windows-tangenten + R skriv sedan in kontroll and hit enter to open the Control Panel.
2. Now inside Control Panel Search box type felsökare och välj Felsökning.
4. After that, click on Configure a device link under Maskinvara och ljud and follow the on-screen instruction.
5. If the problem is found, click Apply this fix.
Se om du kan Fixa enhetsbeskrivningsbegäran misslyckades (okänd USB-enhet), om inte så fortsätt.
Method 3: Uninstall Unknown USB Drivers
1. Tryck Windows-tangenten + R skriv sedan in devmgmt.msc and hit enter to open Enhetshanteraren.
2. In device Manager expands Universal Serial Bus-kontroller.
4. Connect your device, which is not being recognized by Windows.
5. Du kommer att se en Okänd USB-enhet (Enhetsbeskrivningsförfrågan misslyckades) with a yellow exclamation mark under Universal Serial Bus-kontroller.
6. Now right-click on it and select Avinstallera.
Notera: Do this for all the devices under Universal Serial Bus controllers which have a yellow exclamation mark.
7. Restart your PC, and the drivers will be automatically installed.
Metod 4: Inaktivera snabbstart
1. Tryck på Windows-tangent + R och skriv sedan kontroll och tryck Enter för att öppna Kontrollpanel.
2. Klicka på Maskinvara och ljud klicka sedan på Energialternativ.
3. Välj sedan från den vänstra fönsterrutan “Choose what the power buttons do.”
4. Klicka nu på “Change settings that are currently unavailable.”
5. Avmarkera "Slå på snabbstart” och klicka på Spara ändringar.
6. Starta om datorn för att spara ändringarna och se om du kan Fix Device Descriptor Request Failed (Unkown USB Device).
Method 5: Update Generic USB Hub
1. Tryck Windows-tangenten + R skriv sedan in devmgmt.msc and Enter to open Device Manager.
2. Expandera Universal Serial Bus-kontroller.
3. Högerklicka på Generiskt USB-nav och välj “Update Driver.”
4. Välj nu Bläddra i min dator för drivrutinsprogram.
5. Click on. Let me pick from a list of drivers on my computer.
6. välj Generiskt USB-nav from the list of drivers and click Nästa.
7. Wait for Windows to finish the installation, then click Stäng.
8. Make sure to follow the steps 4 to 8 for all the “Generis USB-hubb” present under Universal Serial Bus controllers.
9. If the problem is still resolved, follow the above steps for all the devices listed under Universal Serial Bus-kontroller.
This method may be able to Fix Device Descriptor Request Failed (Unkown USB Device), if not then continue.
Method 6: Remove Power Supply to Fix USB Device Not Recognized
If for some reason your laptop fails to deliver power to USB Ports, then it’s possible that the USB Ports might not work at all. To fix the issue with the laptop power supply, you need to shut down your system completely. Then remove the power supply cable and then remove the battery from your laptop. Now hold the power button for 15-20 seconds and then again insert the battery but don’t connect the power supply. Power ON your system and check if you’re able to Fix Device Descriptor Request Failed (Unkown USB Device).
Method 7: Update BIOS to the latest version
Performing BIOS update is a critical task, and if something goes wrong it can seriously damage your system; therefore, expert supervision is recommended.
1. The first step is to identify your BIOS version, press Windows-tangent + R then type “msinfo32” (without quotes) and hit enter to open System Information.
2. När Systeminformation window opens locate BIOS Version/Date then note down the manufacturer and BIOS version.
3. Next, go to your manufacturer’s website, e.g. in my case it’s Dell, so I will go to Dells webbplats and then enter my computer serial number or click on the auto-detect option.
4. Now, from the list of drivers shown, I will click on BIOS and will download the recommended update.
Notera: Do not turn off your computer or disconnect from your power source while updating the BIOS or you may harm your computer. During the update, your computer will restart, and you will briefly see a black screen.
5. Once the file is downloaded, just double-click on the .exe file to run it.
6. If you have followed all the above steps correctly, you may be able to successfully update your BIOS to the latest version.
Rekommenderas:
Det är det du har lyckats med Fixa enhetsbeskrivningsbegäran misslyckades (okänd USB-enhet) but if you still have any queries regarding this tutorial feel free to ask them in the comment’s section.