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Power surge on the USB port in Windows 10

This article provides the information on "Power surge on the USB port – Unknown USB Device needs more power than the port can supply - Windows 10".

Power surge on the USB port.

A Latitude E7450 user running Windows 10 Pro 64-out of the box reported the following error: "Power surge on the USB port – Unknown USB Device needs more power than the port can supply." If you expand it it says Power surge on the USB port – A USB device has malfunctioned and exceeded the power limits of its hub port. You should disconnect the device.


Initiation troubleshooting should correspond with the on-screen directions:

  1. Disconnect all USB peripheral items, then Click the Reset button on the screen using the system touchpad and touchpad buttons.
  2. Once reset, it is recommended that you reboot the system then reconnect the USB device and see if the error re-occurs.

If the issue persists:

Run the Hardware Troubleshooter

  1. Type "Troubleshooting" in the search bar and press "Enter".
  2. In the "Troubleshooting" window, click on "View All" on the left pane.
  3. Click on "Hardware and Devices".
  4. Click on "Advanced" and then click on "Run as Administrator".
  5. Click "Next" and follow the on-screen instructions to complete the troubleshooting process.

Uninstall and Reinstall all the USB Controllers

  1. Disconnect the USB device from the computer.
  2. Press "Windows Logo" + "R" keys on the keyboard and type "devmgmt.msc" in the "Run" Command box and press "Enter".
  3. Expand "Universal Serial Bus Controllers".
  4. Right-click on every device under the "Universal Serial Bus Controllers" node, and then click "Uninstall" to remove them one at a time.
  5. Restart the computer so that Windows reinstalls the USB controller drivers automatically.
  6. Now, plug in the USB device, and then check if that resolves the issue.

If this issue continues to occur with a specific device, it is possible that the device is requiring more voltage than is available from the USB port being used. In this case a USB Hub with it's own dedicated power source is suggested.

Connect the Powered USB hub to the system USB port and then connect the device to the powered USB hub.

Run the Diagnostic Test on your USB Ports

Browse to the Dell USB Diagnostics page and follow the prompts, to help identify and fix issues with your computer.

If you have completed all the troubleshooting as indicated above, it is recommended you contact Dell Technical Support for additional assistance.

Article ID: SLN301114

Last Date Modified: 03/07/2018 08:33 AM

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