Unknown Device - USB error Code 43

Anonymous
2011-12-15T00:54:36+00:00

Dell XPS m1330 running Win7 Pro 32-bit, service pack 1.

I have had this problem seemingly forever but have been ignoring it, as it doesn't seem to affect the performance of my laptop, but now I'm wondering why it has happened.

I have 7 Intel ICH8 host controllers, a Microsoft Keyboard and Mouse driver, USB Composite Device, USB Mass Storage Device and 7 USB Root Hubs that all seem to work fine, I have no problems using any devices I plug in to the machine, but there is an Unknown Device, with no hardware/device details available, reporting a Code 43.

I have uninstalled and reinstalled all the USB drivers, didn't help, in fact it made it worse as it seems to have lost my fingerprint reader (the reader is installed but apparently not connected to anything). There are no new driver updates. I have no idea what the Unknown Device is referring to, other than Port#0002 Hub#0001.

As I said, all external USB ports work fine, and until I tried fixing it, the Fingerprint reader was fine as well, I don't know what else should be on USB, so don't know what to fix.

Any help?

Chris

Windows for home | Previous Windows versions | Devices and drivers

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  1. Anonymous
    2014-12-31T19:04:25+00:00

    My Hardware Ids shows "USB\UNKNOWN"

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  2. Anonymous
    2013-10-24T02:29:12+00:00

    Hello,

    try the following:

      • Remove all usb root hubs
      • Restart
      • Scoring devices not installed (likely to be the bluetooth)
      • Download drivers for
      • Enjoy

    if you can, send a photo of the screen, in the case of not working ...

    I hope everything goes well

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  3. Anonymous
    2013-02-23T02:25:28+00:00

    Hey guys, I just spent two weeks with the annoying USB connected error, accompanied by a ghost USB device in Device Manager that would just not go away. I tried registry hacks, uninstalling/updating/disabling the drivers etc. I didn't go as far as reformatting or re-installing Windows because from what I read that never seemed to help. Also unplugging my computer and letting it drain of power didn't fix the issue either. 

    What DID solve my USB woes was the Windows 7 "HotFix". It's basically a hotfix for USB problems on W7. It's litterally the only thing that fixed this issue- so if you've got this problem look no further.

    You can download the (x64) HotFix here:

    http://thehotfixshare.net/board/index.php?showtopic=17961

    I'm sure the hotfix is available for x32 as well. The name of the hotfix is "Windows6.1-KB2528984-v2-x64" if you need to further search it.

    Hope it helps!

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  4. Anonymous
    2012-05-13T10:59:04+00:00

    Update: uninstalling the Unknown Device through Device Manager does absolutely nothing if any device is plugged in to USB. Doesn't matter which device, the device itself will continue working but Windows will try (and fail) to reinstall whatever driver it thinks is missing, so the Unknown Device comes back straight away. With no device plugged in, the error goes away for a while (minutes) and then comes back.

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  5. Anonymous
    2012-05-10T21:07:41+00:00

    Hi Chris,

    My laptop is  Dell-VOSTRO 3550 and I have the exact same problem and I tried everything like you. Could you find any solution?

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