In the power options dialog box expand usb settings and then expand usb selective suspend setting.
Usb power saving options.
Repeat steps 3 and 4 for all of the usb root hubs on the computer.
If you want to enable windows vista to turn off the usb root hub when the computer is running on battery power click enabled in the on battery list.
If you are using a laptop computer this feature may help if you do not want usb powered devices to draw off the computer s battery while the devices are not actively being used.
Click the start button and type edit power plan in the windows search box.
Click the power management tab.
How to disable usb selective suspend.
The operating system microsoft windows 7 allows the computer to shut off power to usb devices to save power.
For the notebook computer in our example there is only a balanced setting.
Turn off the allow the computer to turn off this device to save power by unchecking the box then click the ok button.
Or check it to let windows turn off usb ports to save power.
Set both the on battery and plugged in settings to disabled then click ok to apply changes.
Click change advanced power settings then scroll down to usb settings and click the little plus next to usb selective suspend setting to expand the options.
Under the power management tab you will see the option for restricting power to the usb port to save battery power.
Under the selected power plan click change plan settings.
If you want usb ports to keep supplying power in sleep mode just uncheck allow the computer to turn off this device to save power.
In this windows 10 guide we walk you through the steps to prevent the os from suspending usb devices by changing the power options in the control panel.
Depending on your computer you may see several preset plan settings balanced power saving performance etc.
Click change advanced power settings.