Change settings that are currently unavailable power
Why are my power settings greyed out?If you install a driver not built for your PC, you might encounter incompatibility issues. Recent hardware changes – The effect could grey out your Windows Power Options if you've recently changed any system hardware.
Why can't I change my power mode?Note: You might not be able to change the power mode when a custom power plan is selected. If you can't set the power mode in Power & battery settings, open Control Panel, select System and Security > Power Options, then choose a Balanced power plan.
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