These are the main reasons music will play on a PC without playing it yourself.............Music often plays on its own because a background app is open, a website tab is active, or a media key was pressed by mistake. It can also happen if a remote device or a Bluetooth controller triggers your media player. Common Causes Hidden browser tabs: A website in Chrome, Edge, or Safari is auto-playing a video or an ad. Background apps: Spotify, Apple Music, or a game launcher is running and playing a playlist or a load screen. Stuck media keys: Your keyboard has a play/pause button that got stuck or pressed by accident. Bluetooth devices: A phone or wireless headset nearby sent a play signal to your computer. How to Fix It Check the volume mixer: Open your system sound settings to see which exact app is making noise, then close that app. Close browser tabs: Look through your open browser tabs for a little speaker icon on the tab and close that page. End background tasks: Open your Task Manager (Ctrl+Shift+Esc on Windows) or Force Quit (Command+Option+Esc on Mac) to shut down stubborn music apps. Disconnect Bluetooth: Turn off Bluetooth for a moment to see if another device is controlling your audio.