There are many reasons that why your USB drive cannot be recognized by Laptop/PC. It includes virus attack, USB plugged-out improperly as well as unexpected power-off and so forth. You can restore or repair your pen drive with several methods to make it function properly.
However, it isn’t certain which technique is appropriate in your case as you’re not very clear about the particular reason that causes your pen drive not recognized by PC. However, before doing so, you ought to recover the data from the pen drive.
There are many reasons behind this problem, including hardware and software. Presently, let us discuss how you can resolve such pen drive error.
Tips to Fix Pen Drive Not Detected Error
#1. Shut down Your System and Restart
At times, normally restarting your system’s operating system solves the problem. Shut down your PC and then unplug the supply of power for few minutes. In case you aren't able to do this (for example, if both keyboard and mouse are not working) then, in this case, you do not have any other option but to directly switch off the power supply.
After few minutes, boot your computer by switching on the power supply. When you’ve restarted your computer, the motherboard and the USB ports automatically get rebooted. Then the microprocessor will reload all the drivers and also you will not get this message “USB Device Not Recognized” again.
# 2. Uninstall and Reconnect the USB device
In case the above-mentioned trick does not meet your requirement, you may go for the following alternative.
- Click on Start button, type in the search box “Device Manager”. After that tap on Device Manager.
- Now identify the USB device from the hardware list in the device manager window. For instance, if your USB device was an external HD (Hard Drive) that stopped working, then you need to tap on "Disk Drives".
- Right-click on the USB device having a problem and then tap Uninstall.
- After this process, unplug your USB device.
- Wait for few minutes and after that reconnect your USB device. The driver then loads automatically.
- Now check the Windows Explorer for USB drive.
# 3. Reinstall USB controllers
Next alternative is to reinstall the USB controllers if the above-stated methods do not work.
- Click on the Start button, and then enter in the search box “Device Manager” and after that click on Device Manager.
- Explore the USB Controllers. Right-click on the device and then tap on Uninstall. Repeat the process for each and every device.
- After this process, restart your PC. The USB controllers then installed automatically.
Hopefully, the error "USB Device Not Recognized" ought to be resolved now.
In case it is not resolved, you may have to install hotfixes, or either installs Windows OS latest updates or install latest chipset drivers of the motherboard.
# 4. Update Device Driver
When Windows isn’t able to identify the devices, you might likewise find in Device Manager. There you will see “Unknown Device”.
You can open the Device Manager by clicking on the Start button and then enter in the search “devmgmt.msc” or even through the Control Panel and tap on Device Manager.
If that's the case, then Right-Click on “Unknown Device”, click Properties, after that press the Driver tab and then press the Update Driver button.
In case this fails, it's also possible to try and download the device drivers from the website of the manufacturer. When your USB device is a flash drive, then, in this case, it isn’t the driver problem. On the other hand, if you’re installing drawing pad, USB printer and so forth, then, in this case, it may be worth downloading the specific device drivers.
#5. USB Root Hub
Another alternative is that you can open the Device Manager, and then expand the USB Controllers, after that Right-Click on the USB Root Hub button and tap on Properties.
Under the USB Root Hub Properties tap on the “Power Management” button and untick the box “Allow the computer to turn off this device to save power”.
Press OK and then reboot your PC. Now reconnect the UNIVERSAL SERIES BUS (USB) device and check whether it's detected or not. Otherwise, move back to the USB Root Hub Window and click on the Power Management button for every device as well as mark the box again. In case it does detect the device, then you may leave all of them unchecked.
# 6. USB Troubleshooter
If the above-mentioned methods do not work in your case, you can then download the USB Troubleshooter Fixit Tool. This tool works well with Windows.
You can have the two options either the troubleshooter resolve the issues for you or choose the fixes yourself.
# 7. Update Generic USB Hub
In Device Manager, if you’re receiving the “Unknown Device” error message, you can likewise go for another thing. Open up the Device Manager and after that expands the USB Controllers.
You ought to see no less than 1 item known as “Generic USB Hub”. On several PCs, you may see 2, 3 or more Generic USB Hub. Right click on the “Generic USB Hub” at the top of the list and select “Update Driver Software”.
At the point when the Update dialog window appears, select “Browse” (i.e. My Computer) intended for driver software.
The next step is to tap on “Let me pick from a list of device drivers on my computer”.
From the device driver list, choose “Generic USB Hub”. Click on the Next button and after that press the Close button after the installation process.
Now, the Device Manager window should refresh and moreover the “Unknown Device” may be detected now or may not be detected. In case if it is not detected, then you have to repeat the procedure for every listed “Generic USB Hub”.