Windows Update often installs a generic driver that sort-of works. For full functionality (including jack sensing and multi-streaming audio), grab the driver directly from:

We’ve all been there. You sit down to watch a movie, join a Zoom call, or jump into a game—but your audio is dead. No sound. Or worse: a creepy, crackling static.

If the drivers are fine but you still have no sound, a background service might have stopped.

On older Realtek managers, look for a yellow folder icon in the control panel.