My laptop sound is not working

What is going wrong when the laptop has no sound

Start by splitting one complaint into two different failures. If you cannot hear media, calls, or system alerts, the playback path is at fault: speakers, headphones, Bluetooth audio, volume, or the selected output device. If you can hear others but they cannot hear you, or an app shows no incoming level, the capture path is at fault: the microphone, its mute control, permission to use it, or the selected input. A dark or frozen webcam picture is a third problem and does not, by itself, explain missing sound.

The next step changes with that split. Playback problems are solved on the output device. Microphone problems are solved on the input device. Mixing those paths is the usual reason a fix appears to do nothing.

Playback, microphone, and webcam are separate

Speakers and headphones play sound. A microphone records sound. A webcam captures video. A laptop may expose all three in one settings panel, and a conferencing app may request camera and microphone together, but each still fails on its own. Device detection means the operating system lists the hardware. Access permission means a browser or app is allowed to use that hardware. Active selection means the listed device is the one currently chosen for input or output. A detected microphone can still be silent if permission is denied or another input is selected. A permitted microphone can still be unused if the app is pointed at a different device, including a disconnected headset or a virtual audio device.

Conditions that change the answer

• You hear nothing at all, including system sounds: treat this as output. Check physical mute keys, the volume mixer, headphones left plugged in, and which playback device is active.
• You hear the other person but they do not hear you: treat this as microphone capture. Check the mic mute control, input level, and which recording device is active.
• Sound works in one app and fails in another: the working app shows the device is present. Inspect the failing app’s permission and its own input or output picker.
• A browser or meeting app shows a blocked camera or microphone icon: that is an access-permission problem, not proof that the hardware is missing.
• The device list is empty or a headset name is missing: that is a detection problem. Reconnect the accessory and confirm the operating system lists it before changing app settings.
• Video works and audio does not, or the reverse: keep webcam troubleshooting off the audio path. Camera permission does not grant microphone permission.

What to do next

Decide whether you cannot hear, or cannot be heard. For playback, unmute output, raise volume above zero, unplug unused headphones, and select the speakers or headset you are actually using. For the microphone, unmute input, confirm the operating system shows a level meter moving when you speak, allow the app or browser to use the microphone, then choose that same device inside the app. If the meter never moves, the fault is still on the input device or its mute hardware. If the meter moves in system settings but the app stays silent, the fault is permission or the app’s selected input.

This article does not include measured diagnostics, model-specific hardware tests, or click-by-click steps for a named operating system, browser, or app version. Those details change by platform. Use the system sound settings and the app’s own device picker on the computer in front of you, and keep output checks separate from microphone checks.