Start with the basics before troubleshooting deeper

Most audio problems on a PC come from something straightforward: a muted speaker, a disconnected cable, or a device plugged into the wrong jack. Before you dig into settings, check the physical side first. Look at your speakers or headphones — is there a mute button pressed? Is the volume dial turned all the way down? If you are using external speakers or headphones, unplug them and plug them back in, making sure they go into the audio jack (usually green or marked with a speaker symbol) rather than the microphone jack (usually pink).

Next, check the volume control on your PC itself. In the bottom right corner of your screen, near the clock, you should see a speaker icon. Click it. If the slider is at zero or the speaker has a line through it (muted), drag the slider up or click the mute icon to turn sound back on. This solves the problem about half the time.

Key Takeaways

  • Check physical connections first: make sure speakers or headphones are plugged into the correct jack and the volume slider in the system tray is not muted or at zero.
  • Open Settings and go to System > Sound to see which audio device Windows thinks is your default playback device, and switch it if needed.
  • Right-click the speaker icon in the system tray and select "Open Sound settings" to run the audio troubleshooter, which catches driver and configuration problems automatically.
  • If a specific program has no sound, check that program's own volume settings and make sure it is not muted in the Volume mixer.
  • Update or reinstall your audio driver through Device Manager if the troubleshooter does not fix the problem.

Check which device Windows thinks is playing audio

Windows can get confused about which speakers or headphones should be the default. If you plugged in a new device or recently unplugged one, Windows may still be trying to send sound to a device that is no longer there. Open Settings by pressing the Windows key and typing "Settings," then click the app that appears. Go to System, then Sound.

Under "Output," you will see a dropdown that says "Choose your output device." Click it and look at the list. If you see multiple devices listed — for example, "Speakers," "Headphones," and "HDMI" — make sure the one you actually want to use is selected. If you see a device you do not recognize or that you unplugged, select a different one. Close Settings and test your audio.

Run the built-in audio troubleshooter

Windows includes a troubleshooter that checks for common audio problems automatically. Right-click the speaker icon in the bottom right corner of your screen (in the system tray) and select "Open Sound settings." Scroll down and look for "Advanced" or "Troubleshoot." Click "Run the troubleshooter" or "Troubleshoot audio playback."

Windows will scan your audio setup and may ask you questions like "Are you trying to play audio?" or "Is audio coming from the correct device?" Answer honestly. If the troubleshooter finds a problem, it will offer to fix it automatically. Let it do so and then test your audio again. This step catches driver conflicts and misconfigured settings that are hard to spot manually.

Check the Volume mixer for muted programs

Sometimes a single program has its sound turned off while everything else works fine. If you can hear system sounds (like notification pings) but not audio from a web browser, video player, or game, the program itself may be muted. Right-click the speaker icon in the system tray and select "Open Volume mixer" or "App volume and device preferences" (the exact name varies by Windows version).

You will see a list of programs currently using audio. Find the one that should be making sound — for example, your web browser or music player. Check its volume slider. If it is at zero or has a mute icon, drag the slider up or click the mute button. Also make sure the correct output device is selected for that program. Close the mixer and test the program again.

Update or reinstall your audio driver

Your audio driver is the software that lets Windows talk to your speakers or headphones. If the driver is outdated, corrupted, or missing, sound will not work even if everything else is set up correctly. Press the Windows key and type "Device Manager," then click the app. 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 Audio," "High Definition Audio Device," or something similar. Right-click it and select "Update driver." Choose "Search automatically for updated driver software." Windows will check online and install a newer version if one is available. If that does not work, right-click the device again, select "Uninstall device," restart your PC, and Windows will reinstall the driver automatically on startup.

Check HDMI and external audio connections

If you are using HDMI to connect to a monitor, TV, or external sound system, Windows may be sending audio through HDMI instead of your speakers. Open Settings, go to System > Sound, and check the "Output" dropdown again. If you see "HDMI" or a device name that includes "HDMI," click it and select your actual speakers or headphones instead. Some monitors and TVs have their own volume controls — make sure those are not muted either.

For external USB audio devices like USB headsets or USB speakers, unplug them and plug them into a different USB port. Sometimes a port is faulty or does not provide enough power. After plugging into a new port, wait a few seconds for Windows to recognize the device, then check the Sound settings again to make sure it is set as the default output.

Restart your PC and check for Windows updates

A restart clears temporary glitches that can mute audio or disable drivers. Shut down your PC completely, wait 10 seconds, and turn it back on. Once it boots, test your audio. If it still does not work, check for Windows updates. Press the Windows key and type "Update," then click "Check for updates." If updates are available, install them and restart again. Audio driver updates sometimes come bundled with Windows updates.

If you have tried all these steps and audio still does not work, write down the exact name of your audio device from Device Manager and search online for that name plus "driver read." You may need to visit your PC manufacturer's website (Dell, HP, Lenovo, etc.) or your audio chip maker's website (Realtek, Conexant, etc.) to read and install the latest driver manually.

Frequently Asked Questions

Why is there sound from my speakers but not my headphones?

Windows is probably sending audio to your speakers by default. Plug in your headphones, then open Sound settings and change the output device to your headphones. You may also need to check the Volume mixer to make sure your headphones are not muted there.

How do I know if my audio driver is broken?

Open Device Manager and look under "Sound, video and game controllers." If you see a yellow exclamation mark next to your audio device, or if it says "Unknown device," the driver is missing or corrupted. Right-click it and select "Update driver" or "Uninstall device."

Can a Windows update break my audio?

Yes, occasionally. If audio worked before an update and stopped after, restart your PC first. If that does not help, open Device Manager and update your audio driver. If the problem persists, you can roll back the Windows update by going to Settings > System > Recovery and selecting "Go back."

What if only one program has no sound?

Check that program's settings first — it may have its own volume control or mute button. Then open the Volume mixer and make sure that program is not muted there. If both are on, try closing and reopening the program, or restart your PC.