Switch to mode (click the icon in the bottom right). Right-click anywhere on the screen. Hover over Visualizations .
Ensure you are using the "Legacy" version of Windows Media Player, not the new Windows 11 Media Player app, which has limited visualization support. Switch to mode (click the icon in the bottom right)
This usually means your graphics drivers need an update. Visualizations rely on DirectX; ensure your system is up to date. Switch to mode (click the icon in the bottom right)