How to Disable Power to a USB

You can easily disable power to USB ports in your computer through the Windows Device Manager utility. Turning the power off on these ports can be beneficial for security purposes, for saving power or battery consumption when you are not using these ports, or even when you shut the system down and the ports remain powered.

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Learn to disable the power on USB ports.

Step

Click the Windows "Start" button. Select "Control Panel," "Performance and Maintenance" and click on "System." If you use "Classic View" in "Windows Explorer," select "Control Panel" and click on "System."

Step

Select the "Hardware" tab and click on the "Device Manager" button.

Step

Scroll down the list and click on the "+" sign that corresponds to "Universal Serial Bus controllers." All available USB ports display. Right-click on the "USB Root Hub" item and click on "Properties" option from the drop-down menu.

Step

Select the "Power Management" tab, check the box for "Allow the computer to turn off this device to save power" option and click "OK" to confirm.

Step

Perform the same procedure on the "USB 2.0 Hub," if applicable.