What is the "ACPI Function Keys" Windows Driver?

ACPI (Advanced Configuration and Power Interface) is a standard that allows the operating system to control the power management features of the computer. It also helps manage the system's power states (such as sleep, hibernation, etc.), hardware device control, and other system features related to power consumption and system behavior.

ACPI Function Keys typically refer to a set of hotkeys or function keys (like F1, F2, F3, etc.) that control various functions on your computer, such as volume control, screen brightness, wireless toggle, sleep mode, etc. These keys often work in conjunction with specific drivers that map these function keys to their respective actions.

When you see "ACPI Function Keys" mentioned as a Windows driver, it usually refers to a driver or software package that enables proper functionality of these hotkeys, especially on laptops or devices with special keys for things like volume adjustment, brightness control, or switching power states. This is important because these function keys often do not work correctly without the right driver support.