Windows 11 Build 27686 has some notable improvements, such as support for 2TB of FAT32 storage. It also improves Windows Sandbox and provides greater control over HDR settings, but there is one undocumented change: the ability to set the power mode for different power states.
As you can see in the screenshot below, Windows 11 will finally let you set different power modes for when your PC is plugged in and when it’s running on battery.
Previously, you could only choose one power mode that applied to all states.
Although Windows automatically adjusted some power settings depending on whether the device was plugged in or on battery, the specific “Power Mode” setting itself (such as “Best Performance”, “Balanced”, or “Best Energy Efficiency”) did not have separate options for these two states.
After updating, you can set the power mode for your PC to be plugged in or on battery in the settings highlighted above.
When the device is plugged in, you may want maximum performance because battery life is not an issue. But when you are running on battery, you may prefer a power saving mode to extend battery life.
With this update, you can automatically switch between these modes depending on whether your PC is plugged in or not.
