No Sound on Computer? How to Fix It (Windows 11)

Sound cutting out on a computer is one of those problems that feels catastrophic and is almost always trivial. Before you assume the speakers are dead or the sound card has failed, know this: the overwhelming majority of “no sound” cases come down to the wrong output device being selected, a muted slider hiding somewhere, or a driver that a recent update quietly swapped out. This guide walks through the fixes in the order they actually solve the problem, so you spend your time on the likely causes first. Every step below was checked on a current Windows 11 (24H2) machine, and none of it requires reinstalling Windows or buying anything.

Key Takeaways

• Start with the output device. Windows often sends audio to a monitor, headset, or Bluetooth device you forgot was connected, which looks exactly like “no sound.”
• Check both the master volume and the per-app volume in the Volume mixer. An app muted in the mixer stays silent even when everything else works.
• Restarting the Windows Audio service clears most temporary glitches without a full reboot.
• If sound died right after a Windows update, rolling back the audio driver is usually the fix, because updates sometimes replace a good driver with a generic one.
• Physical checks (cables, the right jack, HDMI vs. speakers) matter more than people expect, especially on desktops.

Fix 1: Select the correct output device

This single step resolves more “no sound” complaints than everything else combined. Windows routes audio to whatever it considers the default device, and that can silently switch to a monitor over HDMI, a headset, or a Bluetooth speaker that’s still paired.

1. Right-click the speaker icon at the far-right of the taskbar and choose Sound settings.
2. Under Output, look at the list of devices. Click the one you actually want to hear from (for example, Speakers, your headphones, or a specific monitor).
3. Play a test sound, or click the device and use Test, to confirm audio comes out.

A faster shortcut: press Windows + Ctrl + V to open the audio output panel in Quick Settings, then pick the right device from the flyout. If you have several outputs, try each one until sound appears.

Fix 2: Check volume, mute, and the Volume mixer

Once the right device is selected, the next culprit is a volume slider set to zero or a mute toggle. Windows keeps a separate volume level for each app, so your system can be at full volume while one program is silenced.

1. Click the speaker icon and make sure the main volume slider is up and the speaker isn’t showing a mute (crossed-out) symbol.
2. Right-click the speaker icon and choose Open volume mixer (or go to Settings > System > Sound > Volume mixer).
3. Check the System level at the top, then scroll down to the individual apps. Raise any slider set low and un-mute anything muted.
4. If your keyboard or laptop has a physical mute key or volume wheel, confirm it hasn’t muted output.

Don’t skip the per-app entries. A browser or game muted in the mixer weeks ago will stay silent no matter what you do elsewhere.

Fix 3: Restart the audio and reboot if needed

Audio can glitch after sleep, a driver hiccup, or a long uptime. A restart of the audio service often brings it back without rebooting the whole machine.

1. Press Windows + R, type services.msc, and press Enter.
2. Find Windows Audio in the list, right-click it, and choose Restart.
3. Do the same for Windows Audio Endpoint Builder.
4. While you’re there, double-click each of those services and confirm the Startup type is set to Automatic.

If restarting the services doesn’t help, a plain reboot of the PC is worth a try before moving on. It clears the audio stack completely and fixes a surprising number of one-off failures.

Fix 4: Run the built-in audio troubleshooter

Windows can diagnose and repair many audio faults automatically. On Windows 11 24H2, the classic troubleshooters were retired and this now runs through the Get Help app, which walks through the same checks interactively.

1. Go to Settings > System > Sound.
2. Scroll down and, under Advanced or troubleshooting options, choose the option to fix sound problems (this opens the Get Help audio guide).
3. Follow the prompts. It can reset the default device, restart services, and detect a disabled device on your behalf.

You can also just open the Get Help app from the Start menu and search for “no sound” to launch the same automated flow.

Fix 5: Update, roll back, or reinstall the audio driver

Drivers are the most common cause of deeper audio problems, and they behave differently depending on whether sound broke gradually or suddenly. If audio disappeared right after a Windows update, a rollback is usually the answer, because updates sometimes replace a working manufacturer driver with a generic one.

1. Press Windows + X and choose Device Manager.
2. Expand Sound, video and game controllers and right-click your audio device (often something like Realtek Audio or High Definition Audio Device).
3. Choose Properties > Driver tab. If Roll Back Driver is available and sound recently broke, click it and restart.
4. If rollback is greyed out, choose Update driver > Search automatically for drivers.
5. Still no luck? Right-click the device, choose Uninstall device, then restart the PC. Windows reinstalls the driver on boot, which clears a corrupted install.

For laptops and prebuilt desktops, the most reliable driver comes straight from the manufacturer’s support page for your exact model. That version is tuned for your hardware in a way the generic Windows driver isn’t.

Fix 6: Check cables, jacks, and physical connections

Software isn’t always the villain, especially on a desktop. Loose or wrong connections mimic a total sound failure.

1. Confirm powered speakers are switched on and their own volume knob is up.
2. On a desktop, plug speakers into the correct jack, usually the green port, and try the ports on the back of the tower rather than the front, which aren’t always wired.
3. Reseat the cable at both ends; a plug that’s slightly out can kill sound entirely.
4. If you use headphones, plug them in and out once. Windows sometimes gets stuck thinking headphones are still connected.

Fix 7: Sort out HDMI, Bluetooth, and multiple outputs

If your sound travels over HDMI to a monitor or TV, or over Bluetooth to a speaker or earbuds, the routing itself is often the issue.

1. For HDMI: the monitor must have its own speakers and its volume up, and the HDMI device must be selected as the output in Sound settings.
2. For Bluetooth: confirm the device is actually connected (not just paired) in Settings > Bluetooth & devices, then select it as the output.
3. If a Bluetooth headset works but is quiet or garbled, remove the device and re-pair it fresh.
4. When both HDMI and speakers are present, remember Windows can only play to one default at a time, so set the one you want.

Fix 8: Turn off audio enhancements

Windows and some drivers apply audio effects that can, on certain hardware, cause silence or distortion. Turning them off is a quick test.

1. Go to Settings > System > Sound and click your output device to open its properties.
2. Find the Audio enhancements setting and switch it to Off.
3. Play a test sound. If audio returns, leave enhancements off, or re-enable them one at a time to find the offender.

Fresh driver installs often flip enhancements back on, so it’s worth rechecking this after any driver work in Fix 5.

Fix 9: Install pending Windows updates

If a bug is behind your silence, Microsoft may have already shipped a fix. Equally, a stalled update can leave the audio stack half-configured.

1. Go to Settings > Windows Update and click Check for updates.
2. Install everything offered, including optional driver updates listed under Advanced options > Optional updates.
3. Restart when prompted and test sound again.

This one is deliberately near the end: updates occasionally cause audio problems as well as fix them, so try it once the quicker steps are exhausted.

Frequently asked questions

Why did my sound stop working after a Windows update?

Updates sometimes replace your device-specific audio driver with a generic Windows one that doesn’t fully match your hardware. The fastest fix is usually to roll the driver back in Device Manager (Fix 5), or to reinstall the driver from your PC maker’s support page.

There’s no sound but the volume icon looks normal. What now?

That almost always means the wrong output device is selected or an app is muted in the Volume mixer. Work through Fix 1 and Fix 2 carefully, checking both the system level and each individual app entry.

My headphones work but my speakers don’t (or vice versa).

These are separate output devices to Windows. Open Sound settings, select the device you want, and confirm it isn’t muted. On a desktop, also check that the speakers are plugged into the correct jack and powered on.

How do I restart the audio service without rebooting?

Press Windows + R, type services.msc, and press Enter. Right-click Windows Audio and choose Restart, then do the same for Windows Audio Endpoint Builder. This clears most temporary audio glitches in seconds.

Nothing here worked. Is my sound card dead?

Rarely, but it’s possible. Before assuming a hardware fault, test with a different pair of headphones or speakers, and try a USB or Bluetooth audio device. If a completely different output works, your onboard audio hardware or its port may be failing, and a cheap USB sound adapter is an easy workaround.