Troubleshooting Guide: How to Fix Computer Sound Issues

TL;DR: If your computer has no sound, first make sure the correct output device is selected, your speakers or headphones are connected properly, and your volume isn’t muted. If that doesn’t fix it, updating your audio driver or restarting Windows Audio usually solves the problem.

In this guide:

• Quick fixes to try first
• No sound at all? Start here
  • Audio Driver
• Your speakers aren’t working
• The sound works, but it doesn’t sound right
  • Everything sounds distorted or crackly
  • Voices sound muffled or underwater
  • Sound keeps cutting in and out
• Still no sound? Here’s what to try next
• Wrapping up
• FAQs

If your computer suddenly has no sound, don’t worry, it happens more often than you might think, and in most cases, the fix is surprisingly simple. Windows can sometimes switch to the wrong output device after an update, a Bluetooth headset may still be connected in the background, or an audio driver might stop working properly.

Before assuming something is broken, start with the quick checks below. They only take a few minutes and solve the majority of Windows sound problems. If those don’t work, we’ll walk through the most common issues step by step until you get your audio back.

Quick fixes to try first

Before you start digging through Windows settings or reinstalling drivers, try these simple fixes first. They only take a minute, and they’re often enough to get your sound back.

1. Restart your computer.
2. Make sure your speakers or headphones are plugged in securely.
3. Check that your volume isn’t muted, both in Windows and on your speakers or headphones.
4. Unplug your audio device and plug it back in.
5. Open Sound Settings and make sure the correct output device is selected.
6. Play a YouTube video or a Windows system sound to see if anything has changed.

Still no sound? No worries, the next step depends on what kind of audio problem you’re dealing with. Let’s jump to it: 

No Sound at all? Start here

One minute you’re watching YouTube, listening to Spotify, or on a Zoom call, and the next… complete silence. Not even the Windows notification sound. If that sounds familiar, you’re dealing with one of the most common audio issues on Windows.

The first thing to check is your default output device. Windows can occasionally switch it without you noticing after you connect headphones, plug in a monitor with built-in speakers, pair a Bluetooth device, or install an update. Your speakers may still be connected, but Windows could be sending the sound somewhere else. Here’s what to do: 

• Open Sound Settings and make sure your speakers or headphones are selected as the default output device. 
• If they aren’t, switch to the correct one and test your audio again.

If everything looks right and you still can’t hear anything, the audio driver is the next thing to check.

Audio Driver

Drivers allow Windows to communicate with your sound hardware. If one becomes damaged or doesn’t install correctly after an update, your audio can disappear without any warning. What you can do is: 

1. Open Device Manager, 
2. Find your audio device, right-click it, and select “Update driver”. 
3. If updating doesn’t solve the problem, uninstall the device and restart your computer. Windows will usually install a fresh copy of the driver automatically during startup.

Windows also includes a built-in audio troubleshooter. It won’t solve every issue, but it’s good at finding configuration problems that are easy to miss. 

1. Just search for “Troubleshoot sound problems” from the Start menu and let Windows run the diagnostic.
2. If you’re still stuck, try restarting the Windows Audio service.
3. Press Windows + R, type services.msc, and press Enter. 
4. Scroll down until you find Windows Audio, right-click it, and choose Restart. This refreshes the audio service without restarting your entire computer.

Before moving on, there’s one more simple thing worth trying if your sound disappeared after installing a Windows update. Some updates don’t finish configuring everything until the next restart, even if Windows already looks ready to use. Restarting your computer one more time can sometimes bring the audio back without any other changes.

Your speakers aren’t working

If your headphones work normally but your speakers don’t, that’s actually a good sign. It usually means Windows can still play audio, and the problem is only affecting your speakers.

✅ Start by checking your default output device. Simply plugging your speakers in isn’t always enough. If Windows is still set to send sound to your headphones, a monitor with built-in speakers, or another audio device, you won’t hear anything from your speakers.

🛜 Bluetooth might be getting in the way. Your computer may have automatically reconnected to a Bluetooth headset or speaker in the background, so your audio is playing somewhere else. If the correct output device is already selected, check the physical connection next. Make sure every cable is plugged in securely, and if your speakers connect through USB, try a different port.

🤓 Pro tip: If possible, test the speakers on another computer. That’s one of the fastest ways to figure out if the speakers themselves are the problem or if the issue is coming from your PC.

The sound works, but it doesn’t sound right

No sound isn’t the only audio problem you can run into, and let’s be honest, not every audio problem means your computer has no sound. Sometimes the audio is there, but something doesn’t feel right and depending on the type, it can lead to a different cause. 

So, here are the most common: 

Everything sounds distorted or crackly

If your speakers crackle, pop, or sound distorted, Windows Sound Enhancements are a good place to start. These enhancements are designed to improve audio quality, but on some computers they can have the opposite effect.

1. Open Sound Settings, 
2. Go to your playback device’s properties, 
3. Disable any sound enhancements you see. 

It’s a simple change, but it fixes distorted audio more often than people expect.

Voices sound muffled or underwater

If voices sound dull or everything seems distant, the sample rate may be the issue. Just:

1. Open your playback device’s Advanced settings 
2. Try selecting a different default format. For example, if it’s set to 48000 Hz, switch to 44100 Hz and test your audio again. Often, a small change like this is all it takes.

Sound keeps cutting in and out

When your audio stutters or randomly drops for a second, the problem isn’t always your speakers or sound card. Sometimes your computer is just overloaded.

We recommend closing any apps you’re not using, especially programs that play audio or video, and see if the interruptions stop. If your PC has been running for a while, a quick restart can also clear up temporary resource issues.

✏️ If your computer is also running unusually hot, check out our guide on how to check your CPU temperature.

Still no sound? Here’s what to try next

If you’ve made it this far and your computer still has no sound, the problem may go beyond Windows settings or drivers.

It’s less common, but hardware problems can also cause audio issues. For example, a damaged audio jack, failing speakers, or even a problem with the motherboard’s built-in sound chip can all cause similar symptoms.

Some computers also have audio settings in the BIOS. If onboard audio has been disabled there, Windows won’t be able to use it. Since BIOS settings affect how your computer starts up, only make changes if you’re comfortable navigating those menus and know exactly what you’re changing.

Wrapping up

Most computer sound problems aren’t caused by broken hardware. More often than not, they’re the result of the wrong output device being selected, an outdated audio driver, or a Windows setting that changed after an update. That’s why it’s worth working through the simple fixes first before assuming something needs to be replaced.

If you’ve tried everything in this guide and your computer still has no sound, the issue may be hardware-related. At Geeks on Site, we troubleshoot computer audio issues every day and can quickly determine if you’re dealing with a Windows setting, a driver problem, or failing hardware. Instead of guessing, you can get the right fix the first time.

FAQs