A PS2 keyboard driver for Windows is a software component that allows your operating system to properly recognize and communicate with a PS2-style keyboard. PS2 keyboards are an older type of keyboard that use a round 6-pin connector, and they are typically used with desktop PCs that have a PS2 port (separate from USB ports).

While Windows generally has built-in drivers for PS2 keyboards and will automatically install them when you connect the keyboard, there may be situations where you need to manually install or update the driver, especially if you encounter issues or the driver is missing. The driver ensures that the operating system can correctly interpret the keystrokes from the keyboard.