How To Fix USB Malfunctioning Or Flash Drive Not Recognized In Windows Computer.
USB is an acronym for Universal Serial B us.
A USB is a commonly used hardware that serves as an interface for attaching peripherals to a computer.

What are peripherals ?
Peripherals are devices that are outside the computer's system unit. Examples a printer, scanner, keyboard, mouse, camera, hard drive, USB cable, modem, flash drive etc.

√ All theses peripherals are attached to a computer system via a USB port.
√ A USB hub is used to provide more connection spaces to a computer.
√ A computer system has at least two two USB ports.
√ USB malfunction or not recognized can occur on all Windows operating systems.


USB error or malfunction had for long been an issue that computer users face or experience when they are trying to connect to an external drive or device.
Many of us had in one time or the other experienced or still experiencing what we are discussing here today.
And might have created fear in you that your computer is damaged just because you're unable to perfectly connect your phone or any external device to a computer.



Possible Causes Of USB Not Recognized problem On Computers And Their Solution

Here, I will be stating all the causes of that error "drive not recognized" and below each of the problems will be their solutions respectively. Okay, let's go.


1. Usb Port Not Working Properly :
If the USB port or connector is dirty or damaged definitely, it will not display any peripheral connected to the computer.
To be sure if it's really the USB port that's not working, remove(unplug) that flash drive and connect it to another port on the same computer. Not still recognized by the computer ?. Connect to another computer, if recognized then it means your own port has a problem.
Switch off the computer. Take a small portion of Cotton wool, soak into
methylated spirit. Use it the gently to clean the usb ports. Wait for 7mins for it in dry up. Switch on the Pc and connect your flash drive again. If it work...good job!. And if it didn't then you will have to take the Pc to the engineer. Or you will consider getting a new one.


2. Too Many Usb Devices On The Same Computer :
A times it is due to the heavy load of peripherals connected to the PC which might in turn stop other devices from working properly.


3. Outdated Driver :
Your usb driver is outdated and you're expect to work?, oh no!.
Use Windows update to check if you need a new driver for your device.
Install update package. This will automatically diagnose and repair all USB problems on windows 7 to 10.
Click on => Download Now . Run the file and follow the steps in the Windows USB Troubleshooter.
If you're not on the computer having the problem kindly download this file and save on a CD then use it from there.


4. Unstable or corrupted USB controllers :
This method will help to fix a corrupted or unstable USB controllers by reinstalling the controllers.
Goto "START" menu on your computer search "DEVICE MANAGER" .click on "Device Manager".
Click + sign to expand "Universal Serial Bus controllers". Press and hold (or right-click) a device and select Uninstall. So, repeat for each device.
Once you're through with all, restart your the computer.
Now, your USB controllers will be installed automatically. Test to see if it's now working.
Note : If the problem persist proceed to the next step.


5. Change the USB Selective Suspend Settings :
Goto control panel and click on " power options "
Click on " Change plan settings".
Click on " Change advanced power settings ".
Expand USB settings and USB selective suspend settings.
Disable both On battery and Plugged in settings.
Click on "Apply " and the " OK ".
Not still working ?, try the next solution.


6. Repair USB Root Hub :
Once again, open Device Manager . click + sign to expand Universal Serial Bus controllers.
Right-click " USB Root Hub " option and click " Properties ".
Go to " Power Management " tab and untick the " Allow the computer to turn off this device to save power ". Click OK.
If you have more USB Root Hubs, you need to repeat this operation a couple of times. And always remember to click " OK " after each performance.
After the settings, connect your USB device back and test if the computer can now recognize it.
If your USB device is not still working fooni through this. Check(tick) the " Allow the computer to turn off "


7. Hard Reset On Desktop Computer
Solution :
This works with desktop.
Unplug and plug your power cable from the CPU (central processing unit).
Plug it back. It will hard reset your CPU and in turn make you computer's software to recognize the hardware which is the flash drive.


8. Your Computer Motherboard is Outdated :
This is the last method I'm giving out because this is the last resort of others fail.
Install your motherboard's latest chipset drivers so that your drives will be recognized.
Checkout your computer's documentation which will contain the exact name of the motherboard manufacturer.Then,
After that, kindly visit your computer manufacturer's support website. There you will be privileged to access the list of computer manufacturers' support sites.
Navigate their website to find the appropriate drivers for your motherboard. For assistance, contact your computer manufacturer.


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Source : https://www.damytechs.com.ng/2018/03/USB-flash-drive-not-recognized-on-windows-computer.html