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.

0 comments

43 answers

Sort by: Newest
Most helpful Newest Oldest
  1. 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.

    Was this answer helpful?

    3 people found this answer helpful.
    0 comments
  2. Anonymous
    2012-05-15T01:39:44+00:00

    Thanks for your reply. I have a built-in fingerprint in my laptop and my laptop can not detect it anymore.  This fingerprint does not appear in Safely remove list.

    Was this answer helpful?

    20+ people found this answer helpful.
    0 comments
  3. Anonymous
    2012-05-13T23:32:50+00:00

    Hardware Ids:

    USB\UNKNOWN

    Compatible Ids

    USB\UNKNOWN

    Device Class

    USB

    Device Class GUID

    {36fc9e60-c465-11cf-8056-444553540000}

    Driver Key

    {36fc9e60-c465-11cf-8056-444553540000}\0015

    Manufacturer

    Standard USB Host Controller

    Location

    Port#0002.Hub#0001

    Physical Device Object Name

    \Device\USBPDO-9

    Bus Number

    0000

    Address

    0002

    Location Paths

    PCIROOT(0)#PCI(1A00)#USBROOT(0)#USB(2)

    etc. etc. etc. I don't know what if any of the rest of this information might be useful, if you need any, let me know what else to post.

    Was this answer helpful?

    600+ people found this answer helpful.
    0 comments
  4. Anonymous
    2012-05-13T17:29:49+00:00

    Go to the device manager and right click on the unknown device.

    Select Properties

    Select the Details Tab

    From the Properties Pulldown menu, select Hardware ID's

    It should be something like

    "PCI\VEN_8086&DEV_1503&SUBSYS_E0001458&REV_05"

    Post the result here.

    Was this answer helpful?

    1 person found this answer helpful.
    0 comments
  5. 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.

    Was this answer helpful?

    2 people found this answer helpful.
    0 comments