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Windows Vista and 7 usb stops working

Discussion in 'Windows 7' started by fellwock, Jan 2, 2011.

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  1. fellwock

    fellwock Thread Starter

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    Jan 1, 2011
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    Hi. Happy New Year! I have been having this problem with my daughter's Lenovo Y550 system since it was new. I just upgraded it to Windows 7 hoping it would fix the problem, but no luck. Here's what's happening:

    we plug in a sandisk thumb drive to either usb port and it registers fine in device manager. When I plug in either an iPhone 3gs or a Seagate FreeAgent external drive, the computer doesn't know it's there. I have scoured the internet and tried several things including, reinstalling iTunes, deinstalling all of the ports and hubs under Universal Bus support in device manager and letting drivers reload on startup, booting from the device menu (PF12 on startup), The USB drives have been replaced, the iPhone has been replaced, etc. Here's the really strange thing: sometimes, one of the above will work and the devices will be clearly recognized. I can plug in and out..no problem. Once the system is either restarted, cold started, or hibernated, the devices are once again not recognized. I don't mean it doesn't know what they are, but rather doesn't even know I have plugged anything in!

    We originally thought it was hardware and replaced drives. Then thought it was Vista, took off service pack 2 (which supposedly had a lot of problems), finally upgraded to Windows 7. Nothing has gotten any better.

    It almost seems like something is getting overlaid during the startup after it's been fixed by one of the efforts above.

    Do you have any idea what could be going on?
     
  2. Lance1

    Lance1

    Joined:
    Aug 4, 2003
    Messages:
    5,613
    Try this post by Elvandil I have see good results on other posts from his recommendations here.
     
  3. fellwock

    fellwock Thread Starter

    Joined:
    Jan 1, 2011
    Messages:
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    Thanks. I've done what he indicated (removing the drivers under device manager) and it did work for me k\once, but then on restart, the usbs went back to not recognizing some of the devices. It's almost as if the high-speed drivers are wiped out and the usbs will only work as 1.1, thus not recognizing the newer devices.

    I appreciate any ideas or directions...I'm stumped!
     
  4. huggie54

    huggie54

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    Messages:
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    hiya,just a thought look in bios and check that the usb 2.0 or high speed or fast transfer is enabled,another thing i read somewhere about not enough power is getting to the ports,
     
  5. fellwock

    fellwock Thread Starter

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    Jan 1, 2011
    Messages:
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    Thanks. Everything looks enabled in BIOS. I can't see where it specifically calls it usb2.0, though. I'll check in to the power issue. Thanks.
     
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