The Microsoft Hardware USB Keyboard Windows driver refers to the software that allows your Microsoft USB Keyboard to work properly with your Windows computer. These drivers help the operating system communicate with the keyboard, enabling functions like typing, special keys (e.g., volume control, media keys), and other keyboard-specific features.

In most cases, Windows automatically installs the required drivers for most USB keyboards, including Microsoft hardware. However, there might be instances when you need to manually install or update the driver, especially if the keyboard isn't functioning correctly or if you want to use special features that require additional software.