If sound isn’t working on your Windows PC, start with the basics: make sure volume isn’t muted and the correct output device (speakers or headphones) is selected from the sound icon in the taskbar. Restart your computer, then check Settings > System > Sound to confirm the right device is set as default. If the issue persists, run the built-in troubleshooter, update or reinstall your audio drivers from Device Manager, and ensure no external device or Bluetooth setting is interfering with playback.