How to Fix a USB Port That Turns On & Off Repeatedly

By Katherine Meyers

USB ports were brought about in an attempt to standardize how we plug devices into a computer. Computer mice, keyboards, digital cameras, and many other electronic devices now utilize an USB port connection. A port that is not functioning as expected can be mission critical, or an infuriating annoyance at the least. A port that continuously turns off and on may not be broken, this maybe a "Power Management" feature of the device. USB ports can hibernate just as a computer or laptop do. If it's dozing off is not in your best interest, you can disable this feature.

Things You'll Need

  • Laptop or Computer with USB ports

Turning off a USB port's power save option.

Step 1

Open "Start Menu", select "Settings", then menu item "Control Panel."

Step 2

In "Control Panel" window click open the "System" icon.

Step 3

When the "System Properties" box opens, select the "Hardware" tab, then click the "Device Manager" button.

Step 4

When "Device Manager" opens, click the at "Universal Serial Bus Controllers" to expand it.

Step 5

Right-click the first "USB Root Hub" item and select "Properties" from the menu.

Step 6

Select the "Power Management" tab. Clear the checkmark from Allow the computer to turn off this device to save power. Click "OK."

Step 7

Repeat these steps for all the "USB Root Hubs."

Tips & Warnings

  • "Power Users" comfortable with the "Run" command can type "devmgmt.msc" in the "Run" command on the "Start Menu" to access "Device Manager."

References & Resources