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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

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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  1. Anonymous
    2013-02-15T14:34:05+00:00

    There is a simple and easy solution for this conflict no matter which device is giving you the problem or if is even all devices including Microsoft ones.

     

    Steps:

     

    Start

    Computer

    Right click on it and scroll down to Properties

    Upper left hand corner click on Device Manager

    New window will open of Device Manager

    Scroll down to Universal Serial Bus Controllers

    Expand it by clicking on the forward arrow key if it is not expanded

    Scrolldown to the USB Device with the Exclamation mark on it in the yellow triangle

    Right click on it and click Uninstall

    Next select USB Root Hub

    Right click on it and click Uninstall

    Do that for all the USB Root Hub that are there

     

    After they are all uninstalled, shut down your computer completely.  Pull out power cord and if it has a battery then remove it.  Press the Power button for a few seconds to drain any power left in the system.  Wait 5 minutes and reinstall the battery, Plug in the Power cord and restart the computer.

     

    Once you get full boot, go to www.microsoft .com and select downloads and then select Microsoft Update.  Minimise the page.

    Next plug in your USB device and let Windows download the drivers automatically for the device.  It should work fine.

     

    Enjoy being headache free!

     

    Pure win. Thanks for the direct and effective solution.

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  2. Anonymous
    2012-03-03T02:34:27+00:00

    Hi,

    Recommended resolution for code 43:

    One of the drivers controlling the device notified the operating system that the device failed in some manner.

    If you have already run the Troubleshooting Wizard, you might want to check the hardware documentation for more information about diagnosing the problem.

    Hope the information is helpful.

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  3. Anonymous
    2013-05-07T01:11:52+00:00

    I have the same errors with my USB.

    I made sure all my windows updates are current.

    I've tried to update drivers, with the same errors.

    My USB reads:

    Hardware Ids:

    USB\UNKNOWN

    I've tried uninstalling all USB RootHubs and draining the power.

    I installed the Windows 7 64-bit HotFix posted. Rebooted.

    Still no fix!

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  4. Anonymous
    2012-05-15T02:19:22+00:00

    A built-in fingerprint scanner sounds like it won't be on USB port. This is a different problem for a different thread.

    I'd suggest you find the Dell Resources discs that came with your laptop, one of them has the Fingerprint Scanner Suite and drivers on it. If that doesn't work, see if you can find a thread on here that is similar to your problem (probably not this one :P ) or start your own question. Good luck.

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  5. Anonymous
    2012-05-11T04:36:37+00:00

    I'm not going to delete anything in my registry until I get home tonight, as someone on that linked thread got locked out of their boot menu after doing that. 

    Here's what I just tried:

    1. Safely remove all devices from USB ports
    2. Go into Control Panel -> Devices
    3. Right-click the Unknown Device, click Uninstall
    4. Takes a few minutes to uninstall
    5. Re-insert one USB flash drive, computer did not recognise it (it was working fine and dandy when Unknown Device was there - Unknown Device is not specific to this drive, it comes up even when nothing is plugged in externally to USB)
    6. Re-insert different device to the other USB port, connected fine
    7. Safely remove everything again
    8. In Devices, go Action -> Scan for Hardware Changes
    9. Finds Unknown Device, tries to reinstall driver for Unknown Device, installation fails, Unknown Device persists with the warning flag
    10. All USB ports work again.

    I'm on a laptop, so ripping the thing apart to see if a USB port has 8 or 9 pins (a suggestion from mural's link) seems excessively painful. I have to agree with what some other people have said, this is not a problem with any external device, it seems to be either Windows, or the Windows driver for this particular USB host.

    (Side note - all ports and devices have been working nicely on Ubuntu 10 on the same machine)

    Thoughts?

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