Steelcase maintains a legacy FTP archive. Go to: https://www.steelcase.com/legacy-products/polyvision/
Searching for the latest can be tricky, as the product landscape shifted significantly around 2021. While original manufacturer support for older interactive boards (like the TS and Walk-and-Talk series) has largely transitioned, functional drivers are still accessible through several legacy and third-party repositories. Where to Download PolyVision Drivers (2021 & Beyond) polyvision interactive whiteboard driver download 2021