USB ports only work after a restart (urgent)

Hi,
I've been having this problem for ages where my USB ports only recognize a device when my computer is starting up so if I un plug it after it has booted and plug it back in it won't work until it restarts again. I have no idea why this is happening it occured when I upgraded my pc.

Thankyou for any help!
3 answers Last reply
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  1. Hi Hutchie,

    What did you upgrade in your pc?
    Also the next time don't restart the pc but open 'Device Manager' look for a usb device with the 'yellow triangle'.
    Uninstall the this device and then click on 'Scan for changes icon'.
  2. neptunus3001 said:
    Hi Hutchie,

    What did you upgrade in your pc?
    Also the next time don't restart the pc but open 'Device Manager' look for a usb device with the 'yellow triangle'.
    Uninstall the this device and then click on 'Scan for changes icon'.


    I upgraded to a Gigabyte motherboard it somehow changed settings, the only thing with a yellow triangle is SM Bus Controller. :)
  3. Hutchie said:
    neptunus3001 said:
    Hi Hutchie,

    What did you upgrade in your pc?
    Also the next time don't restart the pc but open 'Device Manager' look for a usb device with the 'yellow triangle'.
    Uninstall the this device and then click on 'Scan for changes icon'.


    I upgraded to a Gigabyte motherboard it somehow changed settings, the only thing with a yellow triangle is SM Bus Controller. :)


    Try to uninstall 'SM Bus Controller.' and then press 'Scan for changes', that shouldcorrect the problem without restart, at least until the next boot.
    Also reinstall the ChipSet drivers.
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