Unknown Device

Every time I log on my Dell laptop I receive an "Unknown Device" notice. When I click on it, I comes up as:

-USB Device Not Recognized
--USB Root Hub (3 Ports)
---Generic USB Hub (6 Ports)
----Unused Port
----Unused Port
----Unused Port
----Unknown Device
----Unused Port
----Unused Port

{83da6326-97a6-4088-9453-a 1923f573b29}[8]
usb.inf:Generic.Section.NTamd64:BADDEVICE.Dev:6.1.7601.17586:usb\unknown

I know that number is a registry key, but I've searched the registry and cannot find it. I've uninstalled the driver but it keeps reloading itself. Can someone tell me how to fix this problem?
Thank you!

Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 7 Home Premium, Service Pack 1, 64 bit
Processor: Intel(R) Core(TM) i3 CPU M 330 @ 2.13GHz, Intel64 Family 6 Model 37 Stepping 2
Processor Count: 4
RAM: 3892 Mb
Graphics Card: Intel(R) HD Graphics, 1722 Mb
Hard Drives: C: Total - 59999 MB, Free - 5992 MB; D: Total - 235141 MB, Free - 231534 MB;
Motherboard: Dell Inc., 08CNC9
Antivirus: Norton AntiVirus, Updated and Enabled

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