Causes of the USB device not being recognized Error

Asked By 0 points N/A Posted on -

What are the methods to use to correct issues with a USB device not being recognized if conducting a system file check?

How many times been trying to shutdown in order that the USB been recognized, still it won't work?

Is there steps in doing so?

Best Answer by William J. Romaine
Answered By 0 points N/A #161769

Causes of the USB device not being recognized Error



There are two ways:
Method 1: Utilize the Device Manager so it can distinguish the USB device.
1. Click Start> Run and then type Devmgmt.msc on the search box.
2. Click the OK button.
3. This will launch the Device Manager window.
4. Choose your computer to start the scan.
5. Click the Scan for Hardware Changes icon on top of the window.
6. Your computer will scan for any new device that you recently connect.
7. Close the Device Manager window.
If it cannot detect any new devices, continue with the method 2.
Method 2: Disable the power management of your USB hub.
1. Follow the steps 1-3 from method 1.
2. Look for the Universal Bus Controller and then expand it. Just click on the "+" sign beside it.
3. Choose any of the USB Root Hub and then right-click it. Select Properties on the pop-up menu.
4. A new box will open. Just click on the Power Management tab.
5. The "Allow the computer to turn off this device to save power" option will be visible. Untick its check box and then click OK.
6. Repeat the same steps on each USB Root Hub.
7. Under the Device Manager window, click the Scan for hardware changes icon on top of the window.
8. Your computer should recognize now the new device.
9. Close the Device Manager window.
Note: Performing method 2 will reduce battery power on your laptop.
If none of these method work, go for the third and final process.
Method 3: Restart your computer. 
Remove the USB device and restart your computer. Wait for about five to ten minutes and then insert your USB device.
Answered By 0 points N/A #161770

Causes of the USB device not being recognized Error



Not recognizing the USB device is a very common issue. There are various reasons why USB device is not recognized. This includes, but not limited to,
• Physical & logical damage – it prevents the access to data of the USB device thus preventing it from being recognized. You can use free recovery software to access the data again.
• Malfunction of Host Controller device
• Installation of incorrect USB device drivers in the computer
• Even attached device or file can be the source of the problem.
Follow below process to allow your computer recognize USB device.
To check system file:
1. From “start” menu go to “all programs” and then “Accessories”
2. Right click the Command prompt 
3. Select  ‘Run as Administrator” from the popup menu
4. Click “Continue” button. (You may require to enter administrator log in name and password)
5. In the command prompt window, type “scf/scannow” and press Enter
6. Windows will scan your computer. The scan status will be seen by below message:
Beginning the system scan. This process will take some time.
Beginning verification phase of system scan.
Verification XX % complete
7. When the scan is complete, the result will be displayed. 
1 – find no integrity violations, 
2 – find corruption(s) and repair them, or 
3 – find corruption and fail to repair them.
The results of the scan will also be saved to the CBS.log file that is stored in the %windir%LogsCBS folder.
If errors were discovered and repaired, restart your computer. The error should be corrected after the reboot.
Alternate Solution:
1. Reset USB cable (plug out and then plug in again)
2. Open Device Manager (by clicking Start button , then type ” Devmgmt.msc “ in the search option and click OK.
3. Windows Device Manager is launched.
4. Click on the USB root hub. It will display USB root Hub properties management menu.
5. Click on the power management menu and check “Allow the computer to turn off this device to save power”
6. Select “Scan for Hardware changes” from Action menu
If the error is fixed, Windows will show a message recognizing the USB device.
Answered By 0 points N/A #161771

Causes of the USB device not being recognized Error


Hi F,

Here are some factors why your USB device is not being recognized:

·         PC resumes from standby or hibernation mode

·         Driver for universal bus controller is not up to date

·         The driver for USB has been disables

·         USB port is loose

·         USB device version is not supported by your PC

Among the possible cause listed, we need to isolate why the device is not being detected. It might be possible that it’s the driver from the PC, the USB device or even the PC itself.

Here are some steps:

1.     Check Specification of both USB device and PC. We can’t use a USB device with version 3.0 if our PC only has a USB port that has version 2.0 and vice versa (I have included an illustration how to check if  USB is 2.0 or 3.0). It’s either look for another USB device that’s compatible with your PC or look for a PC that supports your USB device. You might also wanted to check if the USB device is working with other PC or another USB device is working with your PC.

2.     Try to unplug the USB device and then plug back in. Check if there are loose ports; test all the ports in of your PC and check if there is visible damage with the USB device.

3.     Check device manager and scan for hardware changes.

4.     Expand Universal Bus Controller under device manager and check properties: if you see “unknown”, try to disable the drivers under universal bus controller and then scan for hardware changes.

5.     Restart your Computer.

6.     Access Command Prompt, run as administrator and initiate sfc/scannow. It will give results such as: find no integrity violation, find corruption and repair them, and find corruption and fail to repair them. Restart your computer and error with automatically be corrected.

7.     Perform a system restore to the date where PC is working with the USB device.

8.     Perform system recovery.


Answered By 0 points N/A #161772

Causes of the USB device not being recognized Error


Hi to all:

Thanks a lot for you inputs. It's of great help to me, where it adds to my knowledge.  Actually, as I browse up in searching through internet, the same content / advise as what you are all send to me. 

Thanks a lot..

Best Answer
Best Answer
Answered By 30 points N/A #161773

Causes of the USB device not being recognized Error


Hello F_canindo,

Here also is another solution. I find your question interesting because I have also encountered the same problem of yours. Aside from the tips and solutions that others shared. I would like to give you some tips and solution on how to fix USB that is not recognized when plugging. When plugging there is an error message that pops-up (See the picture below). It says "USB Device Not Recognized" and windows does not respond immediately on this.

In my experience I did reinstalling and installing the driver but it didn't work for me. I have searched in the net the only simple solution is UNPLUGGING MY COMPUTER FROM THE POWER SUPPLY which simply means not only to turn and off by pressing the power button. The proper way for turning it off is by clicking "shut down" in the start menu and unplug it from the wall socket and let it remain for 10-20 minutes. 

I hope this solution will help you.

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