And here use the USB root hub as the example. If you want to enable the option in the power management, you can edit it in the registry editor.
How to fix Allow Computer to Turn Off This device to Save Power Grayed Out? In most cases, it is your USB device or keyboard driver comes across this unavailable Allow Computer to Turn off This Device to Save Power option on Windows 10. And in some condition, the option is disappeared. But when you entering the keyboard power management, the option allows the computer to turn off this device to save power grayed out. If you can enable this option, perhaps the mouse or keyboard cannot not working is caused by the power management settings. Just find out the device in device manager and right click it to open its Properties, and then under Power management tab, tick the box of Allow computer to turn off this device to save power.
Sometimes, when a device is in idle, users tend to let it alone to save power by allowing computer to turn off this device to save power. How to fix Allow Computer to Turn Off This device to Save Power Grayed Out? Allow Computer to Turn off This Device to Save Power Grayed Out Overview: Allow Computer to Turn off This Device to Save Power Grayed Out Overview
