More sound on the computer: what to do

You launch a video, a call, music… and nothing: NO sound comes out of your computer. Complete silence, even though everything seems to work on screen. Frustrating, especially during a video call or to watch a video! Rest assured: in the vast majority of cases, the issue is not a hardware failure, but a setting—muted volume, incorrect audio output, an application on mute. Before calling for help, a few simple checks almost always resolve the issue. Here’s how to restore sound to your computer.

No sound: possible causes

Understanding where the lack of sound may come from helps resolve it methodically. Rest assured from the start: in the vast majority of cases, it’s NOT a hardware failure, but a SETTING issue, easy to fix. The most common causes: the VOLUME is muted or at minimum (the most common: the sound is simply muted or turned down to zero, on the computer or in the application); the wrong AUDIO OUTPUT is selected (the computer sends sound to a device you’re not listening to: an unplugged headset, a screen, a Bluetooth device…); a HEADSET or earphones (wired or Bluetooth) divert sound from the speakers (the computer sends sound to the headset, not the speakers, or vice versa); the APPLICATION is muted (general sound works, but a specific application or tab is muted); a temporary software issue (often resolved by a restart); more rarely, an audio driver issue or hardware problem. Useful DISTINCTIONS for diagnosis: is the sound missing EVERYWHERE (all applications) or only in ONE application/website? (if everywhere, the problem is general; if just one app, the issue is local to it). Was the sound already MISSING or did it appear after a change (device connection, update)? Are you using INTEGRATED speakers, external speakers, a headset, a Bluetooth device? The APPROACH: as with any troubleshooting, proceed in STEPS, from simplest to most complex (our method guides for self-troubleshooting). What to remember to start: the lack of sound is almost always a setting issue (volume, output, mute), not a failure; before worrying, a few simple checks are enough in almost all cases. Most often, the solution is a click away—a volume to increase, an output to change. Let’s go through these checks in order.

Checks to perform, in order

Let’s proceed from simplest to most complex; test the sound after each step. STEP 1 — the VOLUME: check the obvious first! Is the computer’s general volume MUTED (speaker icon with a line through it) or at MINIMUM? Click on the sound icon (usually at the bottom of the screen, in the taskbar or menu bar) and increase the volume, disable mute; also check the keyboard volume keys (sometimes a “mute” key was accidentally pressed). STEP 2 — the application’s volume: general sound may work, but the application (or browser tab, video) may be muted; check the volume WITHIN the application/player/video (a mute button on the video, a muted tab…); test with another application to see if the issue is general or local. STEP 3 — the AUDIO OUTPUT: this is a VERY common cause; the computer may be sending sound to the WRONG device; in the sound settings (click on the sound icon, or Settings → Sound), check which OUTPUT device is selected; choose the correct one (the computer’s speakers, or the headset, or the speaker you’re using); often, the “lost” sound is actually going to a device you’re not listening to. STEP 4 — the HEADSET / earphones: a plugged-in headset (jack or USB) usually cuts off the speakers; if you’re not using it, UNPLUG it; if it’s only “half” plugged in, the sound may be lost; also check the headset’s own volume. STEP 5 — BLUETOOTH: if you have Bluetooth earphones or a speaker, the computer may be sending sound to them even if they’re turned off or out of range; check the Bluetooth connections; disconnect the Bluetooth device if you want sound on the speakers (our guides for when Bluetooth refuses to connect). STEP 6 — RESTART: if everything seems correct but there’s still no sound, restart the computer; this resolves many temporary software issues (our guides on why restarting fixes most bugs). STEP 7 — external SPEAKERS (if applicable): if they’re external, are they turned on, plugged in (power AND audio cable), and their volume turned up? STEP 8 — test another SOURCE: try another video, another website, another application, to confirm if the issue is general or specific to a source. After these steps, the sound is almost always back: most often, it was a muted volume, an incorrect output selected, or a headset/Bluetooth diverting the sound. If nothing works after all this (and a restart), the issue may be an audio driver to reinstall/update, or more rarely a hardware problem: see the next steps.

The two most common causes: muted volume and incorrect audio output. First, check these two points: they explain the vast majority of “no sound” issues. FIRST reflex, the VOLUME: this seems obvious, but it’s THE number one cause; the sound may simply be MUTED or turned down to zero. Click on your computer’s sound icon (the small speaker, usually at the bottom of the screen): is it crossed out (muted)? Is the volume slider at zero? Increase it, disable mute. Also check the keyboard VOLUME keys (a “mute” key may have been pressed accidentally), and the volume WITHIN the application or video itself (a video may be muted independently; a browser tab may be muted). SECOND reflex, the AUDIO OUTPUT: this is the most common “trap” after volume. Your computer may be sending sound to the WRONG device: a headset you unplugged but the system still thinks is active, a turned-off Bluetooth speaker, an HDMI-connected screen (which has no speakers, or that you’re not using)… Result: the sound “comes out” somewhere you can’t hear it, hence the impression of silence. The solution: go to the sound settings (click on the sound icon, or Settings → Sound) and check the selected OUTPUT device; explicitly choose the one you want to listen to (the built-in speakers, your headset, your speaker). This simple output change resolves many cases where “there’s no sound anymore.” Additional tip: if you’re using a headset or earphones (wired or Bluetooth) that you DON’T want, unplug or disconnect them: they divert sound from the speakers. These two checks—volume (general, keyboard, application) and selected audio output—resolve the vast majority of sound issues in a few seconds, without technical skills. Always start with them before imagining a failure: sound almost never “disappears”; it’s just muted or directed elsewhere.

If the sound still doesn’t come back

If, after basic checks and a restart, the sound is still missing, here are the next steps. The AUDIO DRIVER: the “driver” is the software that allows the system to communicate with the sound card; if it malfunctions, the sound may disappear; SYSTEM UPDATES often fix these issues; on Windows, there’s also a built-in audio troubleshooter that automatically detects and fixes many common issues; run it, it’s simple and often effective. Check for UPDATES: an updated system has better drivers; install pending updates. The DISABLED DEVICE: in advanced sound settings, a playback device may be “disabled”; check that it’s enabled. Specific AUDIO SETTINGS: some software or audio enhancement settings may, if buggy, cut the sound; disabling them may help. The case of ONE application: if sound works everywhere EXCEPT in a specific application, the issue is specific to that app; check its internal audio settings, its volume in the system mixer (which allows adjusting volume per application), or reinstall it. The VOLUME MIXER: systems allow adjusting volume APPLICATION BY APPLICATION; an application may have been individually turned down to zero; check this mixer. The MATERIAL ISSUE (rarer): if nothing works, if the sound disappeared suddenly without a software reason, it may be a sound card or speaker issue; test with a HEADSET or earphones: if sound comes out in the headset but not the speakers, the speakers are the issue (and vice versa); this test helps diagnose. WHEN to consult: if after software checks (volume, output, restart, audio troubleshooter, updates, driver) the sound is still missing, and especially if the headset test confirms a hardware issue, have the device diagnosed (our guides on when to call a repairer). In the meantime, a practical workaround: using a HEADSET or earphones (or a Bluetooth speaker) gives you sound if the speakers are faulty. In summary, if the sound doesn’t come back after the basics: run the audio troubleshooter (Windows), update the system, check the volume mixer and disabled devices, test with a headset to distinguish software and hardware; most cases are resolved this way, and the rare hardware issues are often bypassed with a headset while waiting for repair.

Warning: before assuming a failure, ALWAYS check the simple settings—the sound rarely really “disappears.” The classic mistake when facing a lack of sound is to conclude too quickly that it’s a hardware failure (“my sound card is dead,” “my speakers are broken”) and to worry, or even consider an expensive repair; yet in the vast majority of cases, the sound hasn’t “disappeared”: it’s simply MUTED (volume at zero, mute) or DIRECTED elsewhere (incorrect audio output selected, headset or Bluetooth diverting the sound). So ALWAYS systematically check these simple settings—general volume, keyboard volume, application volume, selected audio output, connected headset/Bluetooth—BEFORE imagining a failure; it’s free, immediate, and almost always resolves the issue. A few specific traps: the “ghost” headset—a headset unplugged but that the system still thinks is connected, or a turned-off Bluetooth device still “connected,” to which the sound continues to be sent into the void; check and change the audio output. Mute by APPLICATION—the general sound works but a specific application or tab is individually muted; check the volume mixer. Also, be careful not to ADJUST anything randomly in the advanced audio settings, which could make things worse; stick to the checks described, and use the built-in audio troubleshooter (Windows) that fixes issues automatically and safely. Don’t DOWNLOAD any “sound repair” or audio driver from a dubious site; these programs are often useless or harmful; drivers should come from official system or manufacturer updates (our guides on avoiding unwanted software). To distinguish a real hardware issue from a setting issue, do the HEADSET test: plug in a headset or earphones; if the sound comes out in the headset, your speakers or their settings are the issue (but the sound card works); if even the headset is silent and all settings are correct, the issue is more general. Finally, keep in mind that a headset or Bluetooth speaker is an IMMEDIATE WORKAROUND if your speakers are truly faulty: you’re never completely without sound. By first checking the simple settings and avoiding hasty conclusions or random adjustments, you’ll restore the sound in almost all cases, without stress or expense.

Frequently asked questions

Why do I have no sound on my computer?

Almost always due to a setting, not a failure: rest assured. The most common causes, in order of probability: the VOLUME is muted or at minimum—check the sound icon (is it crossed out?), the volume slider, and the keyboard volume keys (a “mute” key may have been pressed). The wrong AUDIO OUTPUT is selected—the computer sends sound to a device you’re not listening to (an unplugged but still “active” headset, a turned-off Bluetooth speaker, an HDMI screen…); go to the sound settings and choose the correct output device. A HEADSET or earphones (wired or Bluetooth) divert sound from the speakers—unplug or disconnect them if you’re not using them. The sound is muted in the SPECIFIC application (muted video, muted tab) while it works elsewhere—check the application’s volume. A temporary software issue—often resolved by a restart. Much more rarely: an audio driver to repair, or a hardware issue. So, before worrying: check the volume (general, keyboard, application), the selected audio output, and the headset/Bluetooth; these simple checks resolve almost all cases. The sound almost never really “disappears”; it’s just muted or directed elsewhere; most often, you just need to increase a volume or change an output to restore it instantly.

Sound works in one application but not in another: why?

This is a valuable clue: if sound works in some applications but not in one, the issue is LOCAL to that application, not general to your computer (your sound works overall: good news!). Several possible explanations. The APPLICATION’S volume is muted or at zero: check the system’s volume mixer, which allows adjusting volume APPLICATION BY APPLICATION; this specific app may have been individually muted or turned down to zero (sometimes accidentally); increase it. An AUDIO setting internal to the application: many applications (players, games, video conferencing software) have their own sound and device settings; check in the application’s settings that sound is enabled and the correct output device is selected. For a website or video: the BROWSER TAB may be muted (a crossed-out speaker icon on the tab), or the video itself may be muted; check the video’s sound button and the tab’s. An application bug: sometimes, closing and reopening the application, or updating it, resolves the issue. To troubleshoot: since the issue is local, focus on this application: its volume in the system mixer, its internal audio settings, its state (muted tab/video), and if needed, its restart or reinstallation. No need to touch the computer’s general settings, which work (since other applications have sound). This distinction—general sound OK, one app muted—saves you time by directly targeting the right place: the affected application.

How to know if the issue is hardware-related?

A simple test helps decide: the HEADSET test. Plug in a headset or earphones (wired, or connect Bluetooth earphones) and test the sound. If the sound COMES OUT in the headset but NOT in the computer’s speakers: this means the sound card works (sound is being produced), and the issue comes from the SPEAKERS themselves or their settings/output; it’s not the computer’s audio chip that’s faulty. If even the headset is SILENT, and you’ve checked all settings (volume, selected output, mute), the issue is more general (audio driver, or broader hardware issue). Before concluding it’s hardware, make sure you’ve ruled out all software causes: volume (general, keyboard, application), correctly selected audio output, non-interfering headset/Bluetooth, restart performed, audio troubleshooter launched (on Windows), updates installed; these software causes explain the vast majority of cases, so only conclude it’s hardware after checking all of them. Signs of a real hardware issue: the sound disappeared SUDDENLY without a software change, no setting helps, and the headset test gives nothing (or reveals silent speakers while the headset works). In this case, have the device diagnosed by a professional. Good news in the meantime: if only the speakers are the issue, a HEADSET or speaker (wired or Bluetooth) gives you sound immediately, as a workaround; you’re therefore never completely blocked. But in most cases, before reaching the hardware diagnosis, one of the setting checks will have resolved the issue.

What to remember

A complete lack of sound on the computer is frustrating, but in the vast majority of cases, it’s NOT a failure: it’s a SETTING issue, easy to fix. The two most common causes: the VOLUME muted (check the speaker icon, the slider, the keyboard keys, and the volume IN the application), and the wrong AUDIO OUTPUT selected (the computer sends sound to a device you’re not listening to: unplugged but still “active” headset, turned-off Bluetooth, HDMI screen; go to sound settings and choose the correct device). The checks, IN ORDER: 1) general volume and mute; 2) application volume (test another app to see if it’s general or local); 3) selected audio output; 4) plugged-in headset/earphones (unplug if unused); 5) Bluetooth (disconnect interfering devices); 6) RESTART (resolves many software issues); 7) external speakers (turned on, plugged in, volume); 8) test another source. If the sound doesn’t come back after the basics: run the BUILT-IN audio troubleshooter (on Windows), update the system, check the volume mixer (volume per application) and disabled devices. To distinguish SOFTWARE and HARDWARE: do the HEADSET test—if the sound comes out in the headset but not the speakers, the speakers (or their output) are the issue, not the sound card. If the sound works everywhere EXCEPT in one application, the issue is local to it (check its volume and settings). NEVER conclude it’s a failure before checking the simple settings: the sound rarely really “disappears”; it’s just muted or directed elsewhere; and don’t download any “sound repair” from dubious sites (drivers come from official updates). If the speakers are truly faulty, a headset or Bluetooth speaker gives you sound while waiting for repair. By following these simple checks in order, you’ll restore the sound in almost all cases, in a few seconds and without expense.