The PS2 TrackPoint Windows driver refers to the software that enables and manages the functionality of a TrackPoint pointing device (often found on Lenovo ThinkPad laptops) when running Windows operating systems. The TrackPoint is a small, red pointing stick located between the "G", "H", and "B" keys on the laptop keyboard. It's used as a mouse replacement, allowing you to move the cursor without needing to use a traditional touchpad or external mouse.