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USB Drives not recognized

Discussion in 'Hardware' started by RFX, Jul 18, 2007.

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  1. RFX

    RFX Thread Starter

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    I'm having a trouble with my external USB hard drives (well, a hard drive and an iPod). Basically, there are problems with the USB ports on my laptop, the drives work fine elsewhere. When I plug in my iPod, I get an error that says Windows can't recognize the device and that its malfunctioning. When I plug in my other hard drive, it loads, albeit slowly, and I get a Windows balloon that says it would work faster connected to a USB 2.0 port. Now both of my ports were 2.0, and both devices worked fine before (I recently sent my laptop to IBM for repairs, where they did screw up something with the USB already - I was able to get around that problem, but they just don't understand the problem I'm having here).

    I have already tried uninstalling my Host Controllers, and re-installed them (automatically by Windows on start-up), but it didn't help. I searched for USB drivers on the IBM site, but all they have is for Windows NT (I'm running XP Pro). I was wondering if anyone knew any way to fix my problem, as I'd love to use my USB ports again.

    Here's a picture of what I see in my Device Manager:
    [​IMG]
     
  2. RFX

    RFX Thread Starter

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    So nobody responded to this...


    I was able to get it working, sort of, by creating a DisableSelectiveSuspend registry key. However, the errors still exist whenever I have other USB devices (my mouse and keyboard) plugged in. Furthermore, although it seems to work fine, I still get the error that it would work faster if it was connected to a USB 2.0 port. Does anyone know what happened to my computer and what I can do to fix this?
     
  3. JohnWill

    JohnWill Retired Moderator

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    First step, Start, Programs, Accessories, System Tools, System Restore. Create a restore point and name it something like "Before USB Fix". This is to bail you out if something goes wrong during the following process and makes things worse.

    Create a file with NOTEPAD containing the following lines and save it as FIX.REG

    -------------------------- Use text after this line --------------------------------
    REGEDIT4
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment]"DEVMGR_SHOW_NONPRESENT_DEVICES"="1"

    -------------------------- Use text before this line --------------------------------

    Double click on FIX.REG and say yes to the Merge Into Registry question.

    Unplug ALL USB devices.
    Open Device Manager.
    View, Show Hidden Devices.
    Uninstall all devices under USB Controllers.
    Uninstall all devices under Disk Drives that you know are not present.
    Uninstall all devices under Storage Volumes. Say no to any reboot prompts until you are finished. Also, if a Storage Volume doesn't uninstall, ignore it and move to the next one.
    If you have a yellow ? with unknown devices, uninstall all of the entries there as well.

    When this is done, reboot TWICE.

    Reconnect the USB devices and see if they're recognized properly.

    NOTE: If you have a USB keyboard and/or mouse, you'll have to modify the instructions and leave enough parts for those to function. I don't have one yet, so I haven't had time to modify the instructions.
     
  4. RFX

    RFX Thread Starter

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    So it seems that it does work fine now when my mouse is plugged in, but I still get the warning bubbles that it would work better if it was plugged into a hi-speed port. Any chance of fixing that too?
     
  5. RFX

    RFX Thread Starter

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    So I was able to fix this with a DisableSelectiveSuspend Registry key, and everything was ok for a few weeks. But as of this morning, its back to not working. Can anyone else think of some sort of fix for this?
     
  6. JohnWill

    JohnWill Retired Moderator

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    Messages:
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    Do the process again, maybe it'll remember a bit longer. ;)

    I have no idea what's corrupting the USB entries...
     
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