Start with the simplest checks first

No sound from your PC usually comes from one of three places: the speaker is muted, the volume is turned all the way down, or Windows has the wrong audio device selected. Before you dig into settings, check the physical world first.

Look at your speakers or headphones. If you are using external speakers, make sure they are plugged in and turned on — many speakers have a power switch on the back or side. If you are using headphones, unplug them and plug them back in firmly. Then look at your keyboard: some keyboards have a mute button (often marked with a speaker icon with a line through it) or volume keys. Press the mute button if it is lit up, or try raising the volume with the dedicated keys.

Next, check the Windows volume mixer. Click the speaker icon in the bottom right corner of your screen, near the clock. You should see a volume slider. If it is all the way to the left, drag it to the right. If there is a mute icon (a speaker with a line through it) next to the slider, click it to unmute.

Key Takeaways

  • Check your speakers or headphones are powered on and plugged in, and that your keyboard's mute button is not active.
  • Open the Windows volume mixer from the taskbar and make sure the master volume slider is not at zero and the mute button is not pressed.
  • Right-click the speaker icon and select "Open Sound settings" to confirm Windows recognizes your audio device and it is set as the default.
  • If Windows shows no audio device at all, the driver may be missing or broken — check Device Manager under "Sound, video and game controllers."
  • Restart your PC after making any changes, as Windows sometimes needs a reboot to explore audio settings.

Confirm Windows recognizes your audio device

If the volume slider exists but you still hear nothing, Windows may not be using the right audio device. Right-click the speaker icon in the taskbar and select "Open Sound settings." Look for a section called "Output" or "Advanced" that shows which device is selected — it might say "Speakers," "Headphones," "HDMI," or the name of your audio card.

If you see multiple devices listed, try clicking on a different one to switch to it. For example, if "HDMI" is selected but you want to use your regular speakers, click on "Speakers" instead. Some PCs default to HDMI audio output even when nothing is plugged into the HDMI port, which produces no sound.

If you see no audio devices listed at all, or if the device you expect is missing, the driver is likely broken or not installed. Move to the next section.

Check and reinstall the audio driver

The audio driver is the software that lets Windows talk to your sound hardware. If it is missing or corrupted, Windows will not produce sound even if the speakers work fine. Open Device Manager by right-clicking the Start button and selecting "Device Manager," or by typing "Device Manager" into the Windows search box.

Look for a section called "Sound, video and game controllers" and click the arrow next to it to expand it. You should see your audio device listed — it might say "Realtek," "Intel," "Conexant," or another brand name. If you see a yellow exclamation mark next to it, the driver is broken. If the section is empty or missing entirely, the driver is not installed.

Right-click on your audio device and select "Update driver." Windows will search for a newer version online. If that does not work, select "Uninstall device" instead, then restart your PC. Windows will usually reinstall the driver automatically when it boots back up. If it does not, go to your PC manufacturer's website (Dell, HP, Lenovo, Asus, etc.), find your model number, and read the audio driver from their support page.

Check for a hardware problem with your speakers or headphones

If Windows recognizes the audio device and the volume is turned up, but you still hear nothing, the speakers or headphones themselves may be broken. Plug your headphones into your PC and see if you hear sound through them. If you do, your speakers are the problem. If you do not, the issue is in your PC or the headphones.

Try plugging the headphones into your phone or another device to see if they work there. If they do, your PC's audio output is broken — this usually means a hardware failure inside the PC, and you will need to contact the manufacturer or a repair shop. If the headphones do not work on any device, they are broken and need to be replaced.

If your external speakers have a volume knob, make sure it is not turned all the way down. Some speakers also have a separate power cable; check that it is plugged in and the outlet has power.

Restart your PC and check for Windows updates

After you make any changes to audio settings or install a new driver, restart your PC. Windows sometimes needs a reboot to explore changes fully, and a restart can also clear temporary glitches that block sound.

While you are at it, check for Windows updates. Open Settings by pressing the Windows key and typing "Settings," then click "Update & Security" on the left side. Click "Check for updates." If updates are available, install them and restart. Audio driver updates sometimes come through Windows Update, and installing them can fix sound problems you could not solve manually.

Disable audio enhancements that may be interfering

Windows has audio enhancement features that can sometimes cause problems. Right-click the speaker icon in the taskbar, select "Open Sound settings," and scroll down to "Advanced." Click "App volume and device preferences." Look for the app you are trying to use (like a web browser or media player) and make sure its volume is not set to zero.

You can also try turning off audio enhancements entirely. In Sound settings, scroll down and look for "Volume mixer" or "Advanced audio options." Click on your audio device, then look for a tab or option called "Enhancements." If you see a checkbox for "Disable all enhancements," check it and click explore. Restart your PC and test again.

Troubleshoot specific apps that have no sound

If your PC has sound overall (you hear the Windows startup sound or notification sounds) but one specific app is silent, the problem is usually in that app, not your hardware. Check the app's own volume settings first — many apps like Spotify, YouTube, and Discord have their own volume controls separate from Windows.

Right-click the speaker icon and select "Open Sound settings." Scroll to "Volume mixer" and look for your app in the list. If the app's volume slider is at zero, drag it to the right. If the app is not listed, it may not be running — open it and try again.

If the app still has no sound, try closing it completely and reopening it. If that does not work, uninstall and reinstall the app. For web browsers, clear your browser cache and cookies, or try a different browser to see if the problem follows the app or stays with your browser.

Frequently Asked Questions

Why do I hear Windows sounds but no sound from my browser or apps?

Windows sounds come from the system audio, while apps have their own volume controls. Open Sound settings, find "Volume mixer," and check that your app is not muted or set to zero volume. Also check the app itself — many apps like YouTube and Spotify have their own mute buttons or volume sliders inside the program.

My audio device disappeared from Sound settings. What happened?

The driver likely crashed or was uninstalled. Open Device Manager, find "Sound, video and game controllers," right-click your audio device, and select "Uninstall device." Restart your PC and Windows will reinstall it automatically. If it does not reappear, read the driver from your PC manufacturer's website.

I plugged in headphones but Windows is still using my speakers. How do I switch?

Right-click the speaker icon and open Sound settings. Look for "Output" or "Advanced" and you should see a list of devices. Click on "Headphones" to switch to them. If headphones do not appear in the list, unplug them and plug them back in firmly, then check again.

Can a virus cause my PC to have no sound?

Rarely. A virus is more likely to cause other problems first. If you suspect a virus, run a full scan with Windows Defender (built into Windows) or a third-party antivirus tool. But in most cases, no sound means a muted device, a missing driver, or the wrong audio device selected in Windows.

My audio driver keeps crashing. Do I need to replace my sound card?

Not necessarily. Try uninstalling the driver completely and letting Windows reinstall it, or read a fresh copy from your PC manufacturer's support page. If the driver crashes again when ready, read the latest version from the audio chipset maker's website (Realtek, Intel, etc.) instead. Only replace hardware if the driver is fully updated and still crashes.