Unknown device: Windows has stopped this device because it has reported problems (Code 43).

Anonymous
2009-12-09T22:20:11+00:00

I have Windows 7 Ultimate. Since very recently an unknown device keeps popping up in the device manager every time I start Win. It's reported location is within the front USB root hub but I haven't changed there anything lately. The device status reports "Windows has stopped this device because it has reported problems (Code 43)". I can uninstall/disable it but it will get picked up again the next time I reboot. All other usb devices (mouse, keyboard, web camera, APC UPS, external drive, printer) work fine. How do I get rid of this nuisance so that it doesn't reappear?

Windows for home | Previous Windows versions | Devices and drivers

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Anonymous
2009-12-11T14:02:16+00:00

If the problem coincided with hooking up the APC UPS that may indicate the problem is with the UPS.

Somewhat similar situation discussed in the following link:

http://www.velocityreviews.com/forums/t527369-apc-ups-usb-as-unknown-device.html

Your situations seems similar as from the "System Information" file the "problem device" has an Error Code "This device is working properly" yet remains an "Unknown Device".

I would suggest to detach the APC UPS from the computer and uninstall any related software.

Restart the computer and see if the "Unknown Device" problem resolves.

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  1. Anonymous
    2011-11-18T02:22:28+00:00

    Does the unkown device show up if you restart the computer in "Safe Mode"?

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  2. Anonymous
    2011-11-22T16:20:42+00:00

    Port_#0001.Hub_#0005

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  3. Anonymous
    2011-11-23T03:25:06+00:00

    That sounds like a "Location".

    Can you try again to  obtain the Hardware Ids?

    Here are the steps, I corrected double-click to right-click:

    In the Device Manager can you right-click the unknown device > Properties > Details, then choose "Hardware Ids" from the drop-down menu under "Property".

    What is listed under "Value"?

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  4. Anonymous
    2011-11-23T05:00:17+00:00

    Thanks  you are very helpful  thanks again

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