A very usual error that appears, after plug-in of the USB device, is “USB Device Not Recognized”. There are several reasons as to why your PC is not supporting the connected USB.

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There certain methods that you can follow in order lớn fix this issue related to lớn your USB connections. Before, you consider the methods to troubleshoot the errors, make sure USB device software và drivers are pre-installed in the system, prior khổng lồ plug-in of USB device. Also, for certain methods you might be required khổng lồ disconnect the USB from the PC.

Fix USB Device Not Working Issues Windows 8, 8.1

Consider the below mentioned steps that you can follow, in order khổng lồ fix USB device connectivity issues. As the exact issue is unknown, you might have khổng lồ base your solution on a hit và trial method.

1. Cheông chồng nguồn Connection:

In case, you are dealing with a USB device that works on battery, make sure the power of the batteries is functional và in correct condition. In case, the power is generated from an external source, ensure the power connections are secure.

2. Examine the USB Device connection:

At times, you can simply disconnect and reconnect your USB device to lớn resolve the connectivity concerns. Follow the suggested steps for the same:

Except for a USB mouse or keyboard, unplug all the USB devices from your system, including printers, cameras, flash drives etc.After disconnecting the devices, follow one of the steps:In case of a desktop system: Connect the troubleshooting USB device lớn the USB ports provided on the bachồng panel of PC.In case of notebook system: Connect the troubleshooting USB device khổng lồ a USB port on the notebook, instead of using a USB docking station or USB hub.USB device is fully functional: In this case the issue is with the overall performance of your system.

NOTE: Make sure that you don’t connect too many USB devices at a time khổng lồ your system. If required, make use of powered hubs lớn connect the devices. Also, if the system is running slow, avoid connecting a USB device.

USB device don’t work properly: In this case, leave the USB device connected khổng lồ the system and follow the next suggested step.

3. USB manufacturer software Installation:

Sometimes the USB error might occur as a result of manufacturer software required for the proper running of the USB device. Certain USB devices need the software khổng lồ be installed in the system prior to lớn their functioning.

You need khổng lồ consider two different scenarquả táo in this:

In case, your USB device included the manufacturer software, install the software as per the instructions mentioned. (if the software has not yet been installed yet).Reconnect your troubleshooting USB device after installing the software.

The suggested method should help the device now work correctly. If problems still exists, continue khổng lồ the next method.

4. Microsoft Support:

Microsoft provides a web-based approach khổng lồ automatically diagnose và fix the issues related lớn your USB audio, storage and print devices. You can visit the below mentioned link in order khổng lồ seek solution for your USB issues from Microsoft:

https://tư vấn.microsoft.com/en-in/help/17614/automatically-diagnose-and-fix-windows-usb-problems

The website page will ask you to lớn tải về a tệp tin, which will provide you a step by step instruction guide lớn troubleshoot USB concerns.

If, the USB device still causes an issue, kiểm tra for the next mentioned method.

Windows Update: A wise step, even otherwise, would be khổng lồ run Windows Update. You can refer to the Windows update options offered by Microsoft. There are possibilities that the USB driver might need khổng lồ be updated. Consider the same as a solution.

5. Update USB Drivers


Clichồng ‘OK’ khổng lồ open Device Manager window.

Based on how the USB device is listed under Device Manager, consider the suggested instructions:

Unknown Device: In case, you removed your USB device while it was still being setup by Windows, it will appear as Unknown under the Device Manager listing. This is because the device has either not been installed or properly cài đặt.


Cthua thảm ‘Device Manager’Restart your system.Other Device: Sometimes an issue arises as a result of uninstalled device drivers. To rectify the issue, install the drivers according to lớn the manufacturer’s manual, after disconnecting the device.Device Name is listed in Device Manager: If the name of your USB device appears in the Device Manager danh sách and their is no issue with the working of the USB ports và basic plug-and-play. Possibly the concern is related lớn the device and/or its drivers. You can follow the suggested steps khổng lồ resolve sầu the concern:

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Uninstall và reinstall the USB device


To uninstall Root hubs, follow the steps:

Except for a USB mouse or keyboard, unplug all the USB devices from your system including printers, cameras, flash drives etc.Run Device Manager. The Device Manager window opens.In the Device Manager Window, look for ‘Universal Serial Bus Controllers’ and double-clichồng it. This will exp& the các mục.Right-clichồng the first appearing ‘USB Root Hub’ to lớn select ‘Uninstall’. Cliông chồng ‘OK’.Likewise, uninstall all the other USB Root Hub listed under Universal Serial Bus Controllers.Once done, cthảm bại Device Manager window and restart the system.In case, your troubleshooting device included a software, install the software following the manufacture manual.Run the USB device again khổng lồ kiểm tra if its working properly now.

9. Regedit tweaks:

Regedit can be made use of to lớn help rectify the concern that arises from the poor working of the USB devices. Follow the steps lớn obtain the solution:

Press Windows Key + RIn the appearing dialogue box, type ‘devmgmt.msc’.Clichồng ‘OK’ lớn open Device Manager window.In the Device Manager Window, look for ‘Universal Serial Bus Controllers’ and double-cliông xã it. This will expvà the menu.


Run ‘Regedit’ by pressing ‘Windows Key + R’ & typing ‘regedit’.Search for: HKEY_LOCAL_MACHINESYSTEMCurrentControlSetEnumUSBDevice Instance Path>Device Parameters.

Note: In place of ‘Device Instance Path’, enter the value that you obtain from step 8.


Restart the system và check for the working of the USB device.

10. Windows USB Troubleshooter:

If, none of the suggested solutions work in your favor, run ‘Windows USB Troubleshoot’ by following the below mentioned instructions:


Go khổng lồ > ‘Start menu’In the > ‘Search Box’, type in ‘USB Troubleshooter’From the appeared danh sách of results, select > ‘Windows USB Troubleshooter‘> Run the program and follow the instructions.

The above sầu mentioned solutions will definitely help overcome the issue of USB device connectivity. If the problem cannot be resolved, the USB ports might be damaged. You may need to lớn replace the damaged ports. If the solutions above vị not work for you, you can take your PC to lớn the repair store khổng lồ have it fixed, as the problem might be caused by hardware issues.

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Note: If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. To create a separate Microsoft Customer Service request, visit Microsoft Support.