After upgrade system to windows 10 usb ports don t work demystifying usb selective suspend these are a few of the articles that have further information on windows usb power management.
Usb power saving windows 10.
The operating system microsoft windows 7 allows the computer to shut off power to usb devices to save power.
To change the power mode quickly select the battery icon on the taskbar and then drag the slider to the power mode you want.
Type devmgmt msc and press enter.
The device manager in windows 10.
More windows 10.
Click the power management tab.
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.
To change your usb port s power settings you need to open the device manager.
By default windows enables the power saving feature all usb ports known as usb selective suspend.
In windows 10 you do that by right clicking start and selecting device manager.
Enable disable power saving on usb ports.
However sometimes the usb port does not get turned back on when it is needed or is inadvertently turned off.
Press the windows key r to open the run box.
This feature is supposed to save power by shutting down usb ports that are only used intermittently.
Windows disable usb power saving disableselectivesuspend by gordy b stronach.