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- Outdated, corrupted or incompatible USB device drivers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
Fix Device Descriptor Request Failed (Unkown USB Device)
確保建立一個還原點,以防出現問題。
Method 1: Change USB Selective Suspend Settings
1.右鍵單擊 battery icon on Taskbar 並選擇 電源選項。
2. Next to your currently active Power Plan, click on 更改計劃設置。
3.現在點擊 更改高級電源設置。
4。 找 USB設置 然後點擊 加號 (+) 圖標 擴大它。
5. Again expand USB選擇性暫停設置 並確保選擇 殘疾人 for both “On Battery” and “Plugged in”.
6. ClickApply followed by OK 和 重新啟動 your PC to save changes.
Method 2: Use Hardware and Devices troubleshooter
1。 按 Windows鍵+ R 然後鍵入 控制 and hit enter to open the Control Panel.
2. Now inside Control Panel Search box type 疑難解答 並選擇 故障排除。
4. 之後,按一下 Configure a device link 下 硬件和聲音 and follow the on-screen instruction.
5. If the problem is found, click Apply this fix.
看看你是否能夠 Fix Device Descriptor Request Failed (Unkown USB Device),如果沒有則繼續。
Method 3: Uninstall Unknown USB Drivers
1。 按 Windows鍵+ R 然後鍵入 鍵入devmgmt.msc and hit enter to open 裝置經理。
2. In device Manager expands 通用串行總線控制器。
4. Connect your device, which is not being recognized by Windows.
5. 你會看到一個 未知的USB設備(設備描述符請求失敗) with a yellow exclamation mark under 通用串行總線控制器。
6. Now right-click on it and select 卸載。
注意: Do this for all the devices under 通用串行總線控制器 which have a yellow exclamation mark.
7. Restart your PC, and the drivers will be automatically installed.
方法一:禁用快速啟動
1. 按 Windows 鍵 + R 然後輸入 控制 然後按Enter打開 控制面板。
2。 點擊 硬件和聲音 然後點擊 電源選項.
3. 然後,從左側窗格中選擇 “Choose what the power buttons do.”
4。 現在點擊 “Change settings that are currently unavailable.”
5.取消選中“打開快速啟動”,然後單擊保存更改。
6. Reboot your PC to save changes and see if you’re able to Fix Device Descriptor Request Failed (Unkown USB Device).
Method 5: Update Generic USB Hub
1。 按 Windows鍵+ R 然後鍵入 鍵入devmgmt.msc and Enter to open Device Manager.
2. 展開 通用串行總線控制器。
3。 右鍵單擊 通用USB集線器 並選擇 “Update Driver.”
4.現在,選擇 瀏覽我的電腦以獲取驅動軟件。
5. Click on. Let me pick from a list of drivers on my computer.
6。 選擇 通用USB集線器 from the list of drivers and click 下一步。
7. Wait for Windows to finish the installation, then click 關閉。
8. Make sure to follow the steps 4 to 8 for all the “通用 USB 集線器” present under Universal Serial Bus controllers.
9. If the problem is still resolved, follow the above steps for all the devices listed under 通用串行總線控制器。
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 Key + R 然後輸入“msinfo32”(不帶引號)並按回車鍵打開系統信息。
2。 一旦 系統信息 窗口打開找到 BIOS 版本/日期,然後記下製造商和 BIOS 版本。
3. Next, go to your manufacturer’s website, e.g. in my case it’s Dell, so I will go to 戴爾網站 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 的BIOS and will download the recommended update.
注意: 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.
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這樣你就成功了 Fix Device Descriptor Request Failed (Unkown USB Device) but if you still have any queries regarding this tutorial feel free to ask them in the comment’s section.