How to Fix No Sound on a Computer

What Causes No Sound on a Computer?

No sound means audio is reaching a device you cannot hear, or a driver, service, or connection fault has stopped output entirely. The four causes below cover almost every silent system, ordered from most to least common.

A stopped Windows Audio service is a fifth cause that silences every application at once. Each fix below names the exact tool to use and checks one of these causes in turn.

How Do You Fix No Sound?

Work through these six fixes in order and test playback after each one, because a single setting, driver, or connection usually accounts for the silence.

• Pick the correct output device. Click the speaker icon in the taskbar, open the list with the arrow next to the volume slider, and select the speakers or headphones that are connected. This alone fixes most cases.
• Check the volume and mute. Confirm the master volume is up, open the Volume Mixer to unmute the affected app, and check for a hardware mute button or wheel on the keyboard, speakers, or headset.
• Run the audio troubleshooter. On Windows 11 23H2 and later, search Get Help and type Fix sound problems. On older builds, go to Settings, System, Troubleshoot, Other troubleshooters, and run Playing Audio.
• Restart the Windows Audio service. Press Windows + R, type services.msc, right-click Windows Audio, and select Restart. Set its Startup type to Automatic and restart the Windows Audio Endpoint Builder service too.
• Update or reinstall the driver. Open Device Manager, expand Sound, video and game controllers, and update the audio device. If sound stays absent, uninstall the device and restart so Windows reinstalls the driver.
• Check the cable and port. Plug desktop speakers into the green line-out jack on the rear, reseat the cable at both ends, and test the speakers on a phone to confirm the hardware works.

Select the Correct Output Device

Setting the right output as default sends audio to the speakers or headphones that are actually connected, which resolves the most common cause of silence. Windows lists every output under the speaker icon and in Sound settings.

1. Click the speaker icon in the taskbar, then the arrow next to the volume slider, and pick the connected device from the list.
2. For full control, right-click the speaker icon and select Sound settings, then choose your device under Output.
3. Open More sound settings to reach the classic Sound Control Panel and the Playback tab, which shows every available device.
4. Right-click the correct device and select Set as Default Device, and Set as Default Communication Device if calls route elsewhere.
5. Play a test sound and confirm audio comes from the chosen output.

A device shown as Not plugged in or Disabled points to a connection or driver fault rather than a default-device setting. If a USB headset or speaker does not appear at all, the steps to fix a USB device that is not recognized apply before the audio fixes.

Check the Volume Mixer and Mute Settings

Confirming the system and per-app volume levels rules out a mute or a low level as the reason for no sound. The Volume Mixer controls each application separately from the master volume.

1. Click the speaker icon and confirm the master volume is above zero and not muted.
2. Right-click the speaker icon and open Volume Mixer, or go to Settings, System, Sound, Volume mixer.
3. Raise the level for the application that has no sound, such as the browser or media player, and confirm its output device is set correctly.
4. Confirm no slider shows the crossed-out muted icon.
5. Check for a physical mute button or volume wheel on the keyboard, speakers, or headset.

A muted application in the Volume Mixer produces silence in one program while the rest of the system plays normally, which separates an app-level mute from a system-wide fault.

Run the Windows Audio Troubleshooter

The built-in audio troubleshooter detects and repairs many common output faults automatically, such as a wrong default device or a stopped service. Where it lives depends on your Windows version.

1. On Windows 11 version 23H2, 24H2, or 25H2, press the Windows key, search Get Help, open the app, and type Fix sound problems.
2. On Windows 11 22H2 and earlier, and on Windows 10, open Settings, then System, then Troubleshoot, then Other troubleshooters, and run Playing Audio.
3. Choose the output device that has no sound when prompted.
4. Apply each repair the troubleshooter recommends.
5. Test playback after the troubleshooter finishes.

Microsoft retired the legacy MSDT troubleshooters during 2025, which is why recent Windows 11 builds open the Get Help app instead of the old dialog. The troubleshooter often resets a wrong default device, restarts the audio service, or flags a driver that needs reinstalling, which narrows the remaining fixes.

Restart the Windows Audio Service

Restarting the Windows Audio service restores sound when the service has stopped or hung, which silences every application at once. The Services console controls the audio service.

1. Press Windows + R, type services.msc, and press Enter.
2. Find Windows Audio in the list of services.
3. Right-click Windows Audio and select Restart.
4. Confirm the Startup type is set to Automatic.
5. Repeat the restart for the Windows Audio Endpoint Builder and Remote Procedure Call (RPC) services, which the audio service depends on.

A Windows Audio service set to Manual or Disabled leaves the system silent until it is set to Automatic and started. If the service refuses to start, the same red X on the speaker icon often clears after a driver reinstall, covered next.

Update or Reinstall the Audio Driver

Updating or reinstalling the audio driver restores output when a Realtek, Intel, or AMD High Definition Audio driver is outdated or corrupt. Device Manager manages every audio driver.

1. Right-click Start and open Device Manager.
2. Expand Sound, video and game controllers.
3. Right-click the audio device, such as Realtek High Definition Audio, and select Update driver, then Search automatically for drivers.
4. If sound stays absent, right-click the device and select Uninstall device, then restart so Windows reinstalls the driver.
5. Download the latest audio driver from the PC or motherboard maker if Windows installs only a generic driver.

A generic High Definition Audio Device driver sometimes replaces the Realtek or Intel driver and disables features such as the front-panel jacks. Installing the manufacturer driver restores full output. The same Device Manager approach revives other dead hardware, such as when you fix a webcam that is not working.

Check HDMI, DisplayPort, and Bluetooth Output

Digital and wireless outputs each add a separate audio device, and sound goes silent when Windows selects one that cannot play it. Connecting a monitor over HDMI or DisplayPort, or pairing a Bluetooth headset, creates an extra output you may need to choose or correct.

1. Open the output list and find the HDMI or DisplayPort entry, often named after the monitor or shown as Digital Output.
2. Select the analog Speakers entry if desk speakers are in the green jack, or the HDMI entry if the monitor or television is meant to play the sound.
3. For DisplayPort with no sound, update the graphics driver, since DisplayPort audio runs through the GPU driver, and check the monitor menu for a separate volume or mute that some displays store per input.
4. For Bluetooth headphones, select the entry labeled Stereo, not the low-quality Hands-Free profile used for calls.
5. If a device is missing, open the Sound Control Panel Playback tab, right-click an empty area, and enable Show Disabled Devices, then enable and set it as default.

A monitor connected over HDMI but lacking speakers produces no sound when it holds the default output. The relationship between display connections and audio routing is explained alongside the steps to fix a monitor showing no signal.

No Sound on a Computer: Symptoms and Causes

Last Thoughts on No Sound on a Computer

No sound on a computer is resolved by selecting the correct output device, confirming the volume and mute, and repairing the audio driver or service that stops output. The wrong default device accounts for most silent systems, which is why the single fastest check is to click the speaker icon and confirm Windows is sending audio to the device you can actually hear. Driver faults, a stopped Windows Audio service, and a cable in the wrong jack cover the rest, and working through the fixes in order isolates the cause without guesswork.

Because audio over HDMI and DisplayPort depends on the display connection, the steps to fix a monitor showing no signal clarify how a display is connected and recognized, and a missing USB headset is covered by the steps to fix a USB device that is not recognized. A full index of related faults sits in the hub of common PC problems.

Key Takeaways:

• The wrong output device is the most common cause; click the speaker icon and pick the connected device first.
• Rule out a mute or low level in the master volume and the per-app Volume Mixer, plus any hardware mute button.
• The audio troubleshooter now opens in the Get Help app on Windows 11 23H2 and later; search Fix sound problems.
• Restart the Windows Audio service from services.msc and set its Startup type to Automatic.
• Update or reinstall a corrupt Realtek, Intel, or AMD driver through Device Manager to clear a red X on the speaker icon.
• Desktop speakers belong in the green line-out jack, and Bluetooth headphones must use the Stereo profile, not Hands-Free.

Frequently Asked Questions (FAQs)