No sound on your computer? The fix is almost always in your audio settings . Sound problems on Windows are caused by one of five things: a muted volume, the wrong default device, an outdated driver, a disabled audio service, or incorrect settings. This guide walks you through each possibility with an interactive diagnostic tree and step-by-step fixes. If you already know what the problem is, jump directly to the relevant guide: Audio Troubleshooter , No Sound on PC or Laptop , or Troubleshoot Sound Steps . Quick Diagnostic — Find Your Fix Use this interactive decision tree to diagnose your no-sound issue. Answer each question and the tool will point you to the specific fix for your audio settings problem. 🔇 No Sound? Interactive Diagnostic Answer each question to find your fix. Click a button to proceed. Is the volume icon in your taskbar muted or showing an X? Fix: Unmute Your System Click the speaker icon in the taskbar and drag the volume slider up. Also press Fn + Volume Up on laptops. If you have external speakers, check their physical volume knob. Is the correct output device selected? (Check Settings → System → Sound → Output) Fix: Set the Correct Default Device Go to Settings → System → Sound and select your speakers or headphones from the "Choose where to play sound" dropdown. In the classic Control Panel, right-click your device and choose "Set as Default Device." Is your audio driver up to date? (Check Device Manager → Sound, video and game controllers) Fix: Update or Reinstall Your Audio Driver Open Device Manager, expand "Sound, video and game controllers," right-click your audio device, and select "Update driver." If that doesn't work, try "Uninstall device" and restart — Windows will reinstall the driver automatically. Have you tried running the Windows Audio Troubleshooter ? Fix: Run the Audio Troubleshooter Go to Settings → System → Troubleshoot → Other troubleshooters and run "Playing Audio." The troubleshooter can automatically detect and fix common sound issues including disabled services and incorrect device settings. Advanced: Reset Audio Settings If none of the above fixed your issue, try resetting your audio settings to default. Go to Settings → System → Sound → Volume mixer, scroll down and click "Reset." This restores all sound devices and app volumes to their factory defaults. Why You Have No Sound on Windows — Full Diagnostic Guide Check Volume and Mute Status The single most common cause of no sound is a muted volume. Windows has multiple volume layers in the audio settings , and any one of them being muted will silence your audio. Click the speaker icon in the taskbar. Make sure the volume slider is not at zero and the speaker is not showing an X (muted). Open the Volume Mixer (Settings → System → Sound → Volume mixer) and check that individual app volumes are not muted. On laptops, check the hardware mute button or function key (usually Fn + speaker icon). Check your external speakers — make sure they are powered on and their volume knob is turned up.

Verify the Correct Output Device If volume is not the issue, the next most common cause is having the wrong default playback device selected in your audio settings . This often happens after connecting or disconnecting headphones, Bluetooth devices, or HDMI displays. Go to Settings → System → Sound and check the "Output" section. Make sure the correct device is selected. Or open mmsys.cpl and check the Playback tab — the green checkmark should be on the device you want to hear from. If the device is not listed, it may be disabled. In the Playback tab, right-click and select "Show Disabled Devices." See our Default Playback Device guide for detailed instructions on setting and managing defaults. Check Audio Drivers Outdated, corrupted, or missing audio drivers are a frequent cause of sound problems. In Device Manager (press Win + X , select Device Manager), expand "Sound, video and game controllers" and look for warning icons (yellow triangles) on any audio device. If you see a warning icon, right-click the device and select "Update driver." If updating does not help, try "Uninstall device" and restart — Windows will reinstall the driver. For a complete walkthrough, see Update Audio Driver . Run the Audio Troubleshooter Windows includes a built-in audio troubleshooter that can automatically detect and fix many audio settings problems. It checks for disabled services, incorrect device settings, and driver issues. Go to Settings → System → Troubleshoot → Other troubleshooters . Find "Playing Audio" and click Run . Follow the prompts — the troubleshooter will scan and attempt to fix issues automatically. For a detailed step-by-step guide, see Audio Troubleshooter . If the basic checks above did not resolve your no-sound issue, try these advanced fixes: Restart the Windows Audio service — Press Win + R , type services.msc , find "Windows Audio", right-click and select Restart. Also restart "Windows Audio Endpoint Builder." Reset audio settings — Go to Settings → System → Sound → Volume mixer, scroll down, and click Reset. See Reset Audio Settings . Check for Windows updates — Some sound fixes come through Windows Update. Go to Settings → Windows Update and check for updates. System restore — If sound stopped working after a recent change, use System Restore to roll back to a working state. Frequently Asked Questions The most common causes are a muted system volume, the wrong output device being selected, outdated or corrupted audio drivers, a disabled Windows Audio service, or a physical connection issue with your speakers or headphones. Windows updates sometimes reset your default audio device or install a generic driver. Open the Sound Control Panel (mmsys.cpl), verify your default device, and check Device Manager for driver issues. You may need to reinstall your audio driver. Press Win + R, type services.msc, and press Enter. Find Windows Audio in the list, right-click it, and select Restart. Also restart Windows Audio Endpoint Builder. This fixes many sound problems without a full restart. Open Settings, System, Sound, Volume mixer and check that the specific app volume is not muted or set to zero. Also verify the app is routing to the correct output device in the Volume mixer per-app settings. Check the hardware mute button or function key on your laptop keyboard (usually Fn + a speaker icon key). Then verify the volume is not muted in Windows, the correct output device is selected, and your audio driver is up to date. If updating the driver does not fix the issue, uninstalling and reinstalling can help. In Device Manager, right-click your audio device, select Uninstall device, check Delete the driver software, and restart. Windows will reinstall a fresh driver.