The Easy Start Button driver refers to the software required for specific hardware buttons on certain laptops or desktops, usually from manufacturers like HP, Dell, or Lenovo. The "Easy Start" button (or sometimes called "Easy Launch" or "Quick Start") is a special button on the keyboard or the chassis of a device that typically allows users to quickly launch an application, open a menu, or perform a predefined function, like turning on a device's Wi-Fi, launching a specific app, or adjusting system settings.

The exact function and driver needed for the Easy Start Button can vary depending on the manufacturer and the model of the device. In general, the driver ensures that the button sends the correct signal to the operating system and behaves as expected when pressed.