The HP PS2 Keyboard (2K - 3) Windows driver is a software component that enables your Windows operating system to communicate with a PS/2 keyboard manufactured by HP. PS/2 (Personal System/2) is an older type of keyboard and mouse connection that is primarily found on legacy PCs. The "2K - 3" refers to a specific version or series of HP PS/2 keyboards, possibly tied to certain models or types of keyboards.

Windows typically comes with built-in drivers to support PS/2 keyboards, so you might not need to manually install anything in most cases. However, if you're experiencing issues with your HP PS2 keyboard, such as it not being recognized, or if you need to install or update the driver, here's how to proceed.