Fix Unknown USB Device in Windows 10 (Device Descriptor Request Failed)

You may find that when you connect an external USB drive, it doesn’t work on your computer. Instead, you get an error message: The last USB device you connected to this computer malfunctioned, and Windows does not recognize it. This may be because the device incompatible with your system. The USB Device Descriptor is responsible for storing information related to various USB devices connected to it so that Windows operating system may recognize these USB devices in the future. If the USB is not recognized, then the USB device descriptor is not working properly on Windows 10. The unrecognized device in Device Manager will be labeled as Okänd USB-enhet (Enhetsbeskrivningsförfrågan misslyckades) med en gul triangel med ett utropstecken. The unknown USB device issue may arise due to various reasons. Today, we will help you fix the Unknown USB Device: Device Descriptor Request Failed error in Windows 10 PC.

How to Fix Unknown USB Device (Device Descriptor Request Failed) in Windows 10

You may face these common errors due to an Unknown USB Device issue:

• Begäran om enhetsbeskrivning misslyckades
• Port Reset Failed
• Set Address Failed

There can be several reasons behind this issue, such as:

• Outdated USB Drivers: If the current drivers in your Windows PC are incompatible or outdated with the system files, then you may face this error.
• Enabled USB Suspend Settings: If you have enabled the USB Suspend settings in your device, then all the USB devices will be suspended from the computer if they are not in active use.
• Outdated Windows OS: In some circumstances, it could be that the Windows operating system running on your device is outdated and thus, conflicting with the device drivers.
• Malfunctioning USB ports: Unclean surroundings might also contribute to the poor performance of your USB drive since the accumulation of dust will not only block the ventilation to the computer but also, cause USB ports to malfunction.
• BIOS är inte uppdaterad: This too may cause such problems.

A list of methods to fix Unknown USB Device: Device Descriptor Request Failed error in Windows 10 computers has been compiled and arranged according to user convenience. So, keep reading!

Metod 1: Grundläggande felsökning

Method 1A: Maintain Clean & Ventilated Ambience

Unclean surroundings and dusty USB ports may cause an Unknown USB Device error in your Windows 10 desktop/laptop. Hence, you should implement the following steps:

1. Clean laptop vents & hamnar. Use a compressed air cleaner while being extremely careful not to damage anything.

2. Moreover, ensure enough space for korrekt ventilation of your desktop/laptop, as shown.

Method 1B: Resolve Hardware Issues

Sometimes, a glitch in the USB port or power supply might trigger an unknown USB device Windows 10 error. Hence, you should perform the following checks:

1. Om problemet orsakas av strömförsörjningen, då prova sätter i USB-enheten igen efter att ha kopplat ur den bärbara datorn från strömförsörjningen.

2. Anslut en annan USB-enhet with the same USB port and check if there is an issue with the port.

3. Anslut USB-enheten till en annan hamn för att utesluta problem med USB-portarna.

Method 1C: Restart Windows PC

In most cases, a simple restart might fix Unknown USB Device (Device Descriptor Request Failed) issue.

1. Koppla från USB-enheten.

2. Omstart din Windows-dator.

3.  Anslut the USB device and check if it worked or not.

Metod 2: Kör Windows Felsökare

You should try running the in-built Windows troubleshooter to fix Unknown USB Device (Device Descriptor Request Failed) issue in Windows 10. You can do so in the two ways explained below.

Option 1: Run Hardware and Devices Troubleshooter

1. Tryck Windows + R nycklar samtidigt för att starta Körning dialog ruta.

2. Typ msdt.exe -id DeviceDiagnostic och klicka på OK, som visat.

3. Here click on the Advanced Open water alternativ, som markerats nedan.

4. Markera rutan markerad Tillämpa reparationer automatiskt och klicka på Nästa.

5. Once the process is completed, starta om datorn and check if USB is being recognized now.

Option 2: Troubleshoot Malfunctioning USB Device

1. Från Aktivitetsfältet högerklicka på USB Device icon.

2. Välj Open Devices and Printers alternativ, som visas.

3. Högerklicka på USB-enhet (t.ex Cruzer Blade) och välj felsöka, som markerats nedan.

4. Windows Felsökare will automatically detect problems and fix these as well.

Notera: If the troubleshooter states that it could not identify the issue, then try the other methods discussed in this article.

Läs också: Fix USB device not recognized by Windows 10

Metod 3: Uppdatera USB-drivrutiner

To fix Unknown USB Device (Device Descriptor Request Failed) issue in Windows 10, you are advised to update USB drivers, as follows:

1. Typ enhetshanteraren i Windows sökfält och slå Enter-tangent att starta den.

2. Gå till Universal Serial Bus controllers section and expand it with a double-click.

3. Högerklicka nu på USB chaufför (t.ex Intel(R) USB 3.0 eXtensible Host Controller – 1.0 (Microsoft)) och välj Uppdatera drivrutinen.

4. Klicka sedan på Sök automatiskt efter drivrutiner. 

5A. Your driver will uppdatering itself to the latest version.

5B. If your driver is already up-to-date, then you will get the message: The best drivers for your device are already installed.

6. Klicka på Stäng to exit the window and Rvara datorn.

7. Upprepa the same for all USB drivers.

Method 4: Roll Back USB Drivers

If the USB device had been working correctly, but began to malfunction after an update, then rolling back the USB Drivers might help. Follow the given instructions below to do so:

1. Navigera till Device Manager > Universal Serial Bus controllers som förklaras i Förfarande 3.

2. Högerklicka på USB-drivrutinen (t.ex Intel(R) USB 3.0 eXtensible Host Controller – 1.0 (Microsoft)) och välj Våra Bostäder, som visas nedan.

3. I USB Device Properties fönster, växla till Chaufför Fliken och välj Roll Back Driver.

Anmärkningar: If the option to Roll Back Driver is greyed out in your system, it indicates that your system does not have any updates installed for the driver. In this case, try alternative methods discussed in this article.

4. välj Why are you rolling back? from the given list and click on Ja att bekräfta.

5. After the process is finished, click on OK att tillämpa denna ändring.

6. Finally, confirm the prompt and omstart ditt system för att göra återställningen effektiv.

Läs också: Fix Universal Serial Bus (USB) Controller Driver Issue

Metod 5: Installera om USB-drivrutiner

If the above methods to update or roll back drivers do not work, then you can try to reinstall your USB driver. Here’s how to fix Unknown USB Device (Device Descriptor Request Failed) issue:

1. Gå till Enhetshanteraren> Universal Serial Bus controllers, using the steps mentioned in Förfarande 3.

2. Högerklicka på Intel(R) USB 3.0 eXtensible Host Controller – 1.0 (Microsoft) och välj Avinstallera enheten, som visat.

3. Klicka nu på Avinstallera och starta om datorn.

4. Now, download the latest USB driver from manufacturer website like Intel.

5. Once downloaded, install the latest USB driver. Then, connect your USB device and check if the said error is rectified.

Method 6: Disallow PC to Turn Off USB Device

The USB power-saving feature allows the hub driver to suspend any individual USB port without affecting the function of other ports, in order to save power. This feature, however useful, may still cause Unknown USB Device issue when your Windows 10 PC is idle. Hence, disable the automatic USB suspend feature using the given steps:

1. Navigera till Enhetshanteraren som visas i Förfarande 3.

2. Här, dubbelklicka på Human Interface Devices att expandera den.

3. Högerklicka på USB Inmatningsenhet och välj Egenskaper.

4. Here, switch to the Power Management tab and uncheck the box titled Låt datorn stänga av den här enheten för att spara ström.

5. Klicka slutligen på OK och omstart ditt system.

Läs också: Fix USB fortsätter att koppla från och återansluta

Method 7: Disable USB Selective Suspend Feature

The selective suspend feature too, helps you to conserve power while disconnecting USB sticks and other peripherals. You can easily disable the USB Selective Suspend feature via Power Options, as explained below:

1. Typ kontroll Panel i Windows sökfält och klicka Öppen.

2. välj Visa efter > Stora ikonerOch klicka sedan på Energialternativ, som visat.

3. Klicka här Ändra schemainställningar in your currently selected plan section.

4. I Redigera planinställningar fönster, välj Ändra avancerade inställningar alternativ.

5. Dubbelklicka nu USB-inställningar att expandera den.

6. Dubbelklicka igen USB-selektiv inställning att expandera den.

7. Klicka här Batteridrift och ändra inställningen till Disabled from the drop-down list, as illustrated.

8. Klicka nu på Plugged in och ändra inställningen till Disabled här också.

9. Klicka slutligen på Ansök > OK to save these changes. Restart your PC and check if the issue is solved now.

Metod 8: Stäng av snabbstart

Turning off the fast startup option is recommended to fix Unknown USB Device (Device Descriptor Request Failed) issue in Windows 10. Just, follow the given steps:

1. Gå till Kontrollpanelen > Energialternativ som illustreras i Förfarande 7.

2. Klicka här Välj vad strömknapparna gör alternativ i det vänstra fältet.

3. Välj nu Ändra inställningar som för tillfället inte tillgänglig alternativ.

4. Next, uncheck the box Aktivera snabb start (rekommenderas) och klicka sedan på Spara ändringar som visas nedan.

5. Slutligen, omstart din Windows-dator.

Läs också: Fix USB Device not Recognized Error Code 43

Metod 9: Uppdatera Windows

Always ensure that you use your system in its updated version. Otherwise, it will cause the said problem.

1. Typ Sök efter uppdateringar i Windows sökfält och klicka Öppen.

2. Klicka nu på Sök efter uppdateringar knapp.

3A. Follow the instruktioner på skärmen för att ladda ner och installera den senaste tillgängliga uppdateringen.

3B. Om ditt system redan är uppdaterat kommer det att visas Du är uppdaterad meddelande.

4. Omstart your system and check if the issue is resolved now.

Metod 10: Uppdatera BIOS

If the above method could not fix Unknown USB Device issue in your Windows 10 desktop/laptop, then you can try updating system BIOS. Read our elaborate tutorial to understand What is BIOS, How to check the current BIOS version, and How to update System BIOS here.

Proffstips: Use the given links to Download Latest BIOS Version for lenovo, Dell & HP bärbara datorer.

Rekommenderas:

We hope that you could learn hur man fix Unknown USB Device (Device Descriptor Request Failed) issue in Windows 10 problem. Let us know which method helped you the best. Also, if you have any queries or suggestions, then feel free to drop them in the comments section.