USB flash drive problem on a dell OptiPlex GX620

i am running a dell OptiPlex GX620, when i plug in my kingston flash drive it makes the noise indicating that the flash drive has been inserted and the light on the flash drive is on but nothing shows up on my computer
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PioneermfgAsked:
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PUNKYCommented:
The flash drive is working on other computer? sound likes it is faulty.
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PioneermfgAuthor Commented:
the flash drive is working on other pc's except the gx. i tried two flash drives on that pc and it does the same thing
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PUNKYCommented:
Can you check in Device Manager see if any yellow mark appear in USb controller?

Post back when you can.
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PioneermfgAuthor Commented:
i did that and there is no yellow mark
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PUNKYCommented:
Did you see the Enhanced USB controller in there? Some flash drive has problem with 1.1 version usb.

... and USB enable in bios?
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PioneermfgAuthor Commented:
no, i didnt see that
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PUNKYCommented:
I suggest you remove all of usb controllers in Device Manager, then let windows os detect them automatically, try that see if it helps.
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nobusCommented:
or try this :
copy the USBSTOR.SYS from a working PC to the bad one.
normally located at c:\windows\system32\drivers
or :
copy C:\Windows\Inf from a working pc to the bad one.
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