Check whether your speakers or headphones are plugged in and turned on
The most common reason a computer produces no sound is that nothing is actually connected to it, or what is connected is switched off. Before you dig into settings, verify the physical setup: if you are using external speakers, they need to be plugged into power and switched on. If you are using headphones, they need to be plugged into the headphone jack or connected via Bluetooth, and the volume dial on the headphones themselves (if there is one) needs to be turned up.
On Windows, the headphone jack is usually on the back or side of the tower, or on the front panel if your case has one. On a laptop, it is typically on the side. On a Mac, there is no headphone jack on newer models — you must use Bluetooth headphones, USB speakers, or a USB-C audio adapter. Unplug and replug the cable firmly to make sure the connection is solid.
Key Takeaways
- Check that speakers or headphones are physically connected and powered on before assuming a software problem exists.
- Windows and Mac both have a mute button in the system tray or menu bar that can silence all sound even when volume is turned up.
- If your computer has no sound at all, the audio driver may be missing or broken, and reinstalling it usually fixes the problem.
- Some programs have their own volume controls that can mute sound even when the system volume is loud.
- If you recently updated Windows or installed new hardware, a driver conflict or incompatibility is the most likely cause.
Unmute the system volume and check the volume level
Both Windows and Mac have a mute button that silences all sound system-wide, separate from the volume slider. On Windows 10 and 11, click the speaker icon in the bottom right corner of the taskbar. If you see a mute symbol (a speaker with a line through it), click it to unmute. Drag the volume slider all the way to the right. On Mac, click the speaker icon in the top right corner of the menu bar and drag the volume slider to the right. If the icon shows a mute symbol, click it to unmute.
While you are in the volume menu, check whether the output device is set correctly. On Windows, right-click the speaker icon and select "Open Volume mixer" or "Sound settings." You will see a list of output devices — make sure the one you want (speakers, headphones, or HDMI) is selected. On Mac, go to System Preferences > Sound > Output and select your device from the list.
Verify the audio driver is installed and working
The audio driver is the software that lets Windows or Mac communicate with your sound hardware. If the driver is missing, outdated, or corrupted, your computer will not produce sound even if everything is plugged in correctly.
On Windows, right-click the Start button and select "Device Manager." Look for "Sound, video and game controllers" and click the arrow to expand it. You should see your audio device listed — on most computers it will say "Realtek High Definition Audio" or "Intel Smart Sound Technology." If you see a yellow exclamation mark next to it, the driver is broken. Right-click the device and select "Update driver." Windows will search for the latest version online. If no driver is listed at all, your audio hardware is not recognized, and you may need to read the driver from your motherboard or laptop manufacturer's website.
On Mac, audio drivers are built into the operating system and cannot be updated separately. If sound is not working, restart your Mac. If that does not fix it, go to System Preferences > Sound > Output and check whether your device appears in the list. If it does not, try unplugging and replugging the device, or restarting again.
Check the volume settings in the program you are using
Many programs — web browsers, video players, music apps, games — have their own volume controls that are separate from the system volume. Even if your system volume is turned all the way up, the program itself can be muted or set to zero.
In a web browser like Chrome or Firefox, look for a speaker icon on the video or audio player and make sure it is not muted. In YouTube, the mute button is usually in the bottom left corner of the video player. In Spotify or Apple Music, check the volume slider in the app itself. In Windows, you can also open Volume mixer (right-click the speaker icon in the taskbar and select "Open Volume mixer") to see the volume level for each open program and unmute any that are silenced.
Restart your computer and check for Windows or Mac updates
A restart often fixes audio problems that are caused by a temporary software glitch. Shut down your computer completely, wait 10 seconds, and turn it back on. Once it has restarted, test whether sound is working.
If sound is still not working, check whether your operating system needs an update. On Windows, go to Settings > Update & Security > Windows Update and click "Check for updates." On Mac, go to System Preferences > Software Update. Install any updates available and restart. Audio driver updates are often included in system updates, and installing them may restore sound.
Disable audio enhancements or try a different output device
On Windows, some computers have audio enhancement features that can interfere with sound. Right-click the speaker icon in the taskbar and select "Open Sound settings." Scroll down and click "Advanced" or "App volume and device preferences." Look for any audio enhancement options and toggle them off. Then test sound again.
If you have multiple audio devices connected (speakers, headphones, HDMI monitor, Bluetooth headphones), try switching to a different one to see whether the problem is specific to one device. In the Sound settings menu, select a different output device from the list and test. If sound works on one device but not another, the broken device may need to be replaced or its driver may need to be reinstalled.
Reinstall the audio driver if updating did not work
If updating the driver did not restore sound, uninstalling and reinstalling it from scratch sometimes works. On Windows, open Device Manager, right-click your audio device, and select "Uninstall device." Check the box that says "Delete the driver software for this device" and click Uninstall. Restart your computer. Windows will automatically reinstall the driver when it boots up.
If Windows does not automatically reinstall the driver, you can read it manually from your motherboard or laptop manufacturer's website. Search for your specific model number and look for the audio driver read. read the file, run the installer, and restart your computer. On Mac, if sound is still not working after a restart and a system update, contact Apple Support or visit an Apple Store, as audio hardware problems on Mac usually require professional diagnosis.
Frequently Asked Questions
Why does sound work in some programs but not others?
The program that is not producing sound may have its own mute button or volume control set to zero. Check inside the program itself for a speaker icon or volume slider. You can also open Volume mixer on Windows to see whether that specific program is muted or set to a low level.
I plugged in headphones but sound still comes from the speakers
Your computer may not have detected the headphones. Try unplugging and replugging them firmly. On Windows, right-click the speaker icon and go to Sound settings to manually select headphones as the output device. On Mac, go to System Preferences > Sound > Output and select your headphones from the list.
Sound stopped working after I updated Windows
A Windows update can sometimes break the audio driver. Open Device Manager, find your audio device, right-click it, and select "Update driver." If that does not work, uninstall the driver completely, restart your computer, and let Windows reinstall it automatically. If the problem persists, read the latest driver from your motherboard or laptop manufacturer's website.
My computer has no audio device listed in Device Manager at all
This means Windows does not recognize your audio hardware. The driver is either missing or the hardware itself is not detected. Restart your computer first. If the device still does not appear, read the audio driver from your motherboard or laptop manufacturer's support page and run the installer. If you built your computer yourself, check that the audio header on the motherboard is connected to the case's front panel audio connector.
Can I use Bluetooth headphones if my computer has no headphone jack?
Yes. On Windows and Mac, you can pair Bluetooth headphones through Settings. On Windows, go to Settings > Bluetooth & devices > Bluetooth and turn it on, then put your headphones in pairing mode. On Mac, go to System Preferences > Bluetooth, turn it on, and select your headphones from the list. Once paired, select them as the output device in Sound settings.