Start with the simplest fixes first

No sound on your computer usually means one of three things: the volume is muted or turned down, the wrong audio device is selected, or a driver needs updating. Before you assume hardware failure, check your volume controls, look at which speakers or headphones Windows or macOS thinks you are using, and verify that the program you are trying to listen to is not muted on its own.

The fastest way to rule out a mute is to look at your keyboard. Most laptops have a mute button — often marked with a speaker icon with a line through it — near the function keys. Press it. On a desktop, check the physical mute button on your speakers or monitor if they have one. Then check the volume slider in your system tray (bottom right on Windows, top right on Mac) and drag it all the way up.

If you hear nothing after that, move to the next section. You are likely looking at a device selection or driver problem, both of which take five minutes to rule out.

Key Takeaways

  • Mute buttons on your keyboard, speakers, or monitor are the most common reason for no sound — check those first before troubleshooting anything else.
  • Windows and Mac both let you choose which audio device to use, and the wrong one being selected will silence your speakers even if they work.
  • Audio drivers are software that tell your computer how to talk to your speakers or headphones, and outdated or missing drivers cause sound to stop working.
  • If sound works in one program but not another, the problem is usually that program's own volume or mute setting, not your computer's audio system.
  • Restarting your computer fixes audio problems roughly half the time because it resets audio connections and clears temporary glitches.

Check which audio device your computer is trying to use

Windows and Mac both let you pick which speakers, headphones, or audio interface your computer sends sound to. If you plugged in headphones but your computer is still trying to use your monitor speakers, you will hear nothing from the headphones. The same thing happens if you have multiple speakers connected and the wrong one is selected.

On Windows 10 or 11, right-click the speaker icon in the bottom right corner of your screen and select "Open Volume mixer" or "Sound settings". Look for a section called "Output" or "Advanced" that shows a list of devices. You should see your speakers or headphones listed. Click on the one you actually want to use. If it is already selected and you still have no sound, move to the driver section below.

On Mac, click the Apple menu, go to "System Settings" (or "System Preferences" on older versions), then click "Sound". Look at the "Output" tab and make sure the device you want is highlighted. If you just plugged in headphones, Mac sometimes takes a few seconds to detect them — unplug and replug them, then check the list again.

Update or reinstall your audio driver

An audio driver is software that lets your operating system talk to your speakers or headphones. If the driver is outdated, corrupted, or missing, Windows and Mac will not send sound to your audio device even if the hardware works fine. Updating or reinstalling the driver fixes this in most cases.

On Windows, right-click the Start button and select "Device Manager". Look for "Sound, video and game controllers" and click the arrow next to it to expand the list. You should see your audio device listed — it might say "Realtek", "Intel", "NVIDIA", or the name of your headphone brand. Right-click it and select "Update driver". Windows will search for a newer version online. If it finds one, install it and restart your computer.

If updating does not work, right-click the device again and select "Uninstall device". Restart your computer. Windows will automatically reinstall the driver when it boots back up. This clears out corrupted files and often restores sound.

On Mac, audio drivers usually update automatically through System Updates. Go to "System Settings", click "General", then "Software Update" and install any updates available. If you have an external audio device like a USB headset or interface, visit the manufacturer's website and read the latest driver for your Mac model.

Restart your computer and check for loose cables

Restarting your computer resets audio connections and clears temporary glitches that prevent sound from working. Shut down completely, wait 10 seconds, and turn it back on. This fixes audio problems roughly half the time because it forces Windows or Mac to re-initialize the audio system from scratch.

While your computer is restarting, check the physical connections. If you are using external speakers, make sure the cable from the speakers to your computer (or monitor) is plugged in firmly at both ends. If you are using headphones, unplug them and plug them back in — sometimes a loose connection in the jack prevents sound from reaching them. If you are using a USB headset or audio interface, try a different USB port on your computer.

After your computer restarts, test the sound again. Open a video on YouTube or a music streaming service and turn the volume up. If you still hear nothing, move to the next section.

Check the volume and mute settings inside the program you are using

Many programs have their own volume controls separate from your computer's system volume. If you have sound in one program but not another, the silent program probably has its own mute button or volume slider turned down.

In web browsers like Chrome or Firefox, look for a speaker icon next to the video or audio player. If it has a line through it, the tab is muted — click it to unmute. In music or video apps like Spotify, iTunes, or VLC, look for a volume slider or mute button inside the app itself and make sure it is turned up. Some apps also have a separate "output device" setting inside their preferences — check that the right speakers are selected there too.

If the program has no visible volume control, right-click the program's name in your taskbar (Windows) or dock (Mac) and look for a volume or audio option in the menu that appears.

Test your audio with a different program or device

Testing with something different tells you whether the problem is your computer's audio system or just one program. Open a different program and try to play sound — if you use Spotify, try YouTube; if you use a video game, try a web browser.

If sound works in the new program, the problem is with the original program, not your computer. Restart that program or reinstall it. If sound does not work in any program, the problem is your computer's audio system, and you have likely already fixed it in the sections above.

If you have headphones, also test with your computer's built-in speakers, and vice versa. This tells you whether the problem is specific to one audio device. If headphones work but speakers do not, your speakers may be broken or disconnected. If speakers work but headphones do not, your headphone jack may be damaged or the headphones themselves may be broken.

When to check for hardware failure

If you have worked through all the steps above and still have no sound in any program on any device, your computer's audio hardware may be failing. This is rare, but it happens.

On a laptop, the audio jack or the internal audio chip can fail from age, liquid damage, or physical impact. On a desktop, the audio port on your motherboard can fail, or the sound card (if you have one) can stop working. If you suspect hardware failure, connect a USB audio device — a USB headset, USB speakers, or a USB audio interface — and test whether sound works through that. If it does, your computer's built-in audio is broken and you will need to use USB audio devices going forward or have the computer repaired.

If sound does not work through USB audio either, the problem may be deeper in your operating system. At that point, a full restart of Windows or Mac (which erases your computer and reinstalls the operating system) can help, but that is a last resort. Consider taking your computer to a repair shop or contacting the manufacturer's support line.

Frequently Asked Questions

Why does my computer have sound in some programs but not others?

The program that is silent probably has its own mute button or volume slider turned down. Look for a speaker icon inside the program or in your browser tab. Some programs also let you choose which audio device to use in their settings — make sure the right speakers are selected there.

I plugged in headphones but I still hear sound from my speakers. What is wrong?

Your computer is not recognizing the headphones as the audio output device. Go to your sound settings (right-click the speaker icon on Windows, or go to System Settings on Mac) and manually select your headphones from the list of audio devices. If they do not appear in the list, try unplugging and replugging them.

My audio worked yesterday but stopped today. What changed?

A Windows or Mac update may have changed your audio settings or updated your driver. Restart your computer first — this fixes most audio problems that appear suddenly. If that does not work, check your sound settings to make sure the right device is still selected, and update your audio driver through Device Manager (Windows) or System Settings (Mac).

Can a loose cable really cause no sound?

Yes. If your speakers or headphones are connected with a cable, a loose connection at either end will prevent sound from reaching them. Unplug the cable completely and plug it back in firmly. If you are using a 3.5mm headphone jack, try gently cleaning the jack with a dry cloth — dust inside the jack can block the connection.

Do I need to replace my speakers if there is no sound?

Not necessarily. Test your speakers by connecting them to a different device like a phone or tablet. If they work there, your computer's audio system is the problem, not the speakers. If they do not work on any device, the speakers are broken and need replacement.