The PSR S500, however, is an older model. While it may sometimes work with generic Windows drivers, relying on them often leads to instability, high latency (a delay between pressing a key and hearing the sound), or an inability to transfer large amounts of data. Therefore, downloading the proprietary Yamaha driver is highly recommended for a stable workflow.
Yamaha regularly updates its drivers to keep up with new operating systems. It is crucial to download the version that matches your computer's OS: YAMAHA PSR-S500 Keyboard Tutorial 4.MPG Yamaha Psr S500 USB Midi Driver