USB not Dectecting By Dell 7520

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USB not Dectecting By Dell 7520

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When i was installing driver for my dell 7520, i forgot to unplug my usb devices and now my computer stop detecting any 2.0 or 3.0 usb devices. How can i solve problem ? I check my devices status under device manager, it shows that all my usb work correctlly. But when i connect my usb device to laptop port it wont detect.

Verified Answer
  • Hi ,

    May I know the operating system installed on your computer.

    You may uninstall the USB root hubs and check if it makes any difference. To uninstall USB Root Hubs:

    • Press and hold the Windows key and press 'R' key. This will open the run window
    • Type 'devmgmt.msc' without the parenthesis, click on 'Ok'
    • Expand ‘Universal Serial Bus controllers’
    • From the list, look for ‘USB Root Hub’
    • Right click, choose ‘Uninstall’, choose ‘Ok’
    • Uninstall all ‘USB Root Hub’ listed
    • Wait for all the drivers to get uninstalled
    • Restarted the computer'. Restarting the computer will install ‘USB Root Hub’s automatically on the computer

    Hope this helps.

    Thanks & Regards,
    Appu S
    #iworkfordell
    To know more about Dell’s Product Support, Drivers & Downloads, Orders & Dispatch status -> choose your region USA, India. For Dell Support Videos, click Here.

All Replies
  • Hi ,

    May I know the operating system installed on your computer.

    You may uninstall the USB root hubs and check if it makes any difference. To uninstall USB Root Hubs:

    • Press and hold the Windows key and press 'R' key. This will open the run window
    • Type 'devmgmt.msc' without the parenthesis, click on 'Ok'
    • Expand ‘Universal Serial Bus controllers’
    • From the list, look for ‘USB Root Hub’
    • Right click, choose ‘Uninstall’, choose ‘Ok’
    • Uninstall all ‘USB Root Hub’ listed
    • Wait for all the drivers to get uninstalled
    • Restarted the computer'. Restarting the computer will install ‘USB Root Hub’s automatically on the computer

    Hope this helps.

    Thanks & Regards,
    Appu S
    #iworkfordell
    To know more about Dell’s Product Support, Drivers & Downloads, Orders & Dispatch status -> choose your region USA, India. For Dell Support Videos, click Here.

  • Thanks it worked. Now my usb ports start detecting usb devices. Thank agaain.

  • Hi aneeqtariq_143,

    I am delighted to hear that! Feel free to reach out in case you face any issues in the future.

    Thanks & Regards,
    Appu S
    #iworkfordell
    To know more about Dell’s Product Support, Drivers & Downloads, Orders & Dispatch status -> choose your region USA, India. For Dell Support Videos, click Here.