Silent speakers or headphones? Check the output device, mute switches, and drivers in the right order.
Quick fix⏱ 10–20 minWindowsMac
When a computer goes silent, it is usually sending sound somewhere you are not listening — a monitor with no speakers, a Bluetooth headset in another room, or a disconnected HDMI TV. The next most common cause is a mute somewhere in the chain: the app, the system, or the speakers themselves.
Driver problems do happen, especially on Windows after an update, but check the simple routing first. It fixes most cases in under a minute.
Try these first — 30 seconds each
[ ]Check the volume isn't muted in the taskbar or menu bar, and that the speakers are powered on with their own volume up.
[ ]Unplug and replug headphones or speakers, and try a different port.
[ ]Play sound from a different app — if only one app is silent, it has its own volume or output setting.
The full fix
6 steps in the order that solves it fastest, plus platform notes, prevention, and when to call
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1
Choose the right output device
Windows: click the speaker icon in the taskbar, then the arrow next to the volume slider, and pick the correct output. Mac: System Settings → Sound → Output, and select your speakers or headphones. Monitors connected over HDMI or DisplayPort, and paired Bluetooth devices, often take over as the default.
2
Check the per-app volume
Windows has a volume mixer that sets each app separately: right-click the speaker icon → Open volume mixer. Make sure the app is not turned down or muted. Browsers can also mute individual tabs — look for a crossed-out speaker icon on the tab.
3
Run the audio troubleshooter (Windows)
Right-click the speaker icon and choose "Troubleshoot sound problems", or search for "audio troubleshooter" in Settings. It checks the most common service and driver problems automatically and restarts the Windows Audio service if it has stopped.
4
Reset the audio system (Mac)
If sound vanished on a Mac without explanation, restarting usually fixes it. Advanced users can instead open Terminal and run "sudo killall coreaudiod", which restarts the audio process without a full reboot.
5
Update or reinstall the audio driver (Windows)
Open Device Manager, expand "Sound, video and game controllers", right-click your audio device, and choose Update driver. If that does not help, choose Uninstall device, then restart — Windows reinstalls the driver on boot. Your computer maker's support site often has the most reliable audio driver for your model.
6
Check the hardware
Try the same speakers or headphones on another device, and a known-good pair on this computer. If the headphone jack only works when you hold the plug at an angle, the port is worn and USB or Bluetooth audio is a good workaround.
Platform notes
Windows
Some laptops have a function key (often F1 or a speaker-icon key) that mutes audio at the hardware level. Tap it once and watch for an on-screen volume indicator.
Mac
If you use an external display with speakers, macOS may switch output to it when connected. Hold Option and click the Sound icon in the menu bar for quick switching.
Stop it happening again
Name your Bluetooth devices clearly so you can tell which one audio is going to.
After major system updates, check the default output device.
Unplug headphones by the plug, not the cable, to protect the jack.
When to get professional help
If no output works — built-in speakers, headphones, and Bluetooth all silent — even after a driver reinstall, the audio hardware or motherboard may be faulty. Contact the manufacturer, especially if the computer is under warranty.
This is general troubleshooting information for home users. Menus and settings differ between
device models and software versions. Back up important data before making changes, and contact
the manufacturer or an authorised repair provider for hardware faults or anything under
warranty.
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