Question about Dell Inspiron 6400 Notebook

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Usb device not recognize

I'm woking with windows vista Suddenly my laptop not recognized my USB flash memory my usb flash memory is working on another computer and also my computer recognize ather usb device like mouse, scanner, webcam, digital camera ...only my usb flash memory is not recognized on my laptop My flash memory is working on another computer I'm testing the below description but it not working Insert the usb flash memory. Goto desktop, right-click my Computer, click Properties, click on Harware tab, click Device Manager button. Showing Unknown Device Right-click and select UnInstall. Reboot my laptop Insert the usb flash memory. But not working My laptop not recognized the USB Flash memory, but it recognized other device like the mouse, webcam scanner, digital camera ... My flash memory is working on another computer Have you any serious solution please?

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You mentioned that you uninstalled the unknown device from the Device manager. If you uninstall it then connected your usb flash drive you will see an error again on your device manager. This means that the driver for your usb port is not properly installed.

To install it, visit dell website, look for the model of your machine and locate the driver, download it then install from your machine.

Posted on Jun 02, 2009

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Posted on Jan 02, 2017

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Insert the usb flash memory.
Goto desktop, right-click my Computer, click Properties, click on Harware tab, click Device Manager button.

There should be yellow exclamation(!) sign showing Unknown Device
Right-click and select UnInstall.

Reboot your laptop
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