1 Press the "Windows" key and "R" key simultaneously. A "Run" box appears. 2 Type "Devmgmt.msc," then press "Enter." This loads the Device Manager. 3 Double-click on "Universal Serial Bus controllers." 4 Double-click on "USB Root Hub." You may have more than one "USB Root Hub" listed in the Device Manager. Double-click on any one of the "USB Root Hubs." 5 Click on the "Power Management" tab. 6 Uncheck the box next to "Allow the computer to turn off this device to save power."