Welcome to fixya...
There are severel reasons for your data traveller's malfunction.
1) The drivers may be not found by your operating system. (which is unusual and can be solved by dowloading the drivers from your manufacturers website which in your case can be found here
2) the hardware failure. sometimes the hinge of usb plug on your pen-drive is twisted or damaged due to a sudden ****. so there is nothing you can do for this type of problem. all you have to do is to replace the USB by visiting the vendor from which you bought the drive. Kingston offers free replacement under warrenty.
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