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  1. #1
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    USB stops working

    I experienced this problem several times on Windows 8.1, and it happened again today on Windows 10, just a couple of days after upgrading. I have to switch the PC off and on again to get it working.

    Another fault which also happened in 8.1, but not at the same time as the USB problem, was a window asking which program I wanted to use in order to run file/program. This window was also present today when the USB ports didn't work.

    What might be the cause of these problems?
    Last edited by Syncopator; 2016-07-27 at 13:47.
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  2. #2
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    Is this after waking from sleep or hibernation?
    Joe

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    Neither Joe. I have the power settings not to sleep or turn of the display, and as far as I know not to hibernate either.
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    Is it one particular device or USB port?
    Joe

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    It's the two ports into which the keyboard and rodent are plugged.
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    Can you try any other ports?
    Joe

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    There's a registry value change at the end of this article which may help, but in Device Manager/USB Controllers right click on the USB Root Hubs - select Properties and under the Power Management tab, uncheck the box to Allow computer to turn off this device to save power.

    You may also have some Generic USB Hubs, so do the same with those.

    http://windowsable.com/how-to-fix-us...in-windows-10/

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    Quote Originally Posted by JoeP517 View Post
    Can you try any other ports?
    Of course. I will have to wait until (if) the problem manifests itself again.


    Quote Originally Posted by Sudo15 View Post
    There's a registry value change at the end of this article which may help, but in Device Manager/USB Controllers right click on the USB Root Hubs - select Properties and under the Power Management tab, uncheck the box to Allow computer to turn off this device to save power.

    You may also have some Generic USB Hubs, so do the same with those.

    http://windowsable.com/how-to-fix-us...in-windows-10/
    I have unchecked the "Allow computer etc" boxes.

    I do not have any hubs.

    I have copied the URL to that article in case the problem persists.
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  9. #9
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    I didn't have any of those Generic USB Hubs until I'd upgraded to Win 10, so don't know what purpose they serve.

    Hubs.PNG

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    Ah, those hubs.

    These are the USB devices on my machine. The first and last in the list have their Power Management boxes unticked.

    usb devices.jpg
    Last edited by Syncopator; 2016-07-28 at 12:33.
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  11. #11
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    Have a look at Solution 2 in this article about USB Selective Suspend - I was trying to think of that before (age ? ) but that registry setting in Solution 3 looks similar to the one I've already posted.

    http://windowsreport.com/usb-3-0-ext...ve-windows-10/

  12. #12
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    Sudo15, the solutions in that link refer to external USB drives. My problem has been none functioning USB ports. I can't see the relevance.
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  13. #13
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    Yes, but you are still using the USB ports and I was referencing Solution 2 as another power setting.

  14. The Following User Says Thank You to Sudo15 For This Useful Post:

    Syncopator (2016-07-28)

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    Got it. Thank you.
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    It's happened again.

    I came to use the PC after a couple of hours and neither the keyboard or mouse worked. I tried plugging them into the other USB ports but none of them worked. I had to switch off and then switch on again.

    I have tried updating the driver software for each of the USB devices in Device Manager, to no effect.

    Any suggestions please?
    Last edited by Syncopator; 2016-07-29 at 20:57.
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