The HID-compliant keyboard driver is a default Windows driver that supports Human Interface Devices (HID) such as keyboards, mice, and other input devices. The term "HID-compliant" means that the keyboard follows the HID standard, which is a universal specification for input devices that allows them to work across different operating systems without requiring special drivers. HID devices are designed to be plug-and-play, meaning Windows should automatically recognize and install the correct driver when you connect a supported keyboard.