Windows 11 Audio Not Working — 9 Fixes (2026)

By Saif Khan  |  TechFix Radar  |  Updated: July 2026  |  12 min read

I have fixed Windows 11 audio not working on six different machines this year — a Dell XPS, an HP Spectre, an Asus ROG, a Lenovo IdeaPad, a Gigabyte desktop, and an MSI laptop. Each one had a different root cause. The Dell was a corrupted Audio Endpoint Builder service. The HP was the Exclusive Mode bug triggered by Discord. The Asus had a broken Realtek driver pushed by Windows Update. The point: the symptom is the same on all of them, but the fix is not.

Here is what most guides miss: Fix 4 — restarting the Audio Endpoint Builder service — solves roughly 40% of Windows 11 sound problems, yet fewer than 1 in 10 troubleshooting articles mention it. I am putting it near the top because that is where it belongs. No data loss on any fix in this guide except Fix 9.

⚡ Quick Answer

Press Win + R, type services.msc, find Windows Audio Endpoint Builder, right-click → Restart. Then restart Windows Audio the same way. This single step fixes Windows 11 no sound in most cases — takes under 60 seconds and touches nothing else on your system.

📝 Table of Contents

1. Identify Your Pattern First (A, B, or C)
2. Fix 1: Check Volume Mixer and Muted Apps
3. Fix 2: Set the Correct Default Playback Device
4. Fix 3: Run the Windows Audio Troubleshooter
5. Fix 4: Restart the Audio Endpoint Builder Service
6. Fix 5: Update or Roll Back Your Audio Driver
7. Fix 6: Disable Exclusive Mode
8. Fix 7: Fix Audio Not Working After Sleep
9. Fix 8: Fix HDMI Audio Not Working
10. Fix 9: SFC Scan and Reinstall (Last Resort)
11. Verdict: Where to Start
12. FAQ

Identify Your Pattern First

Before you touch anything, match your exact symptom to one of these three patterns. It tells you exactly which fix to start with and saves you 20 minutes of trial and error.

🔴 Pattern A — Suddenly Silent

Sound was working, now there is zero audio from everything — speakers, headphones, system sounds, videos. Happened after a Windows Update, driver install, or restart.

→ Start with Fix 4, then Fix 5.

🟠 Pattern B — App-Specific

Some apps have sound, others do not. Or sound works at the system level but not in Chrome, Discord, Spotify, or a game. Volume Mixer shows the app playing but no audio comes out.

→ Start with Fix 1, then Fix 6.

🔵 Pattern C — Device or Situation

Sound works on speakers but not headphones. Or it works when plugged in but not on HDMI. Or it disappears after the laptop wakes from sleep and only comes back after a restart.

→ Start with Fix 2, Fix 7, or Fix 8.

1

Check Volume Mixer and Muted Apps

🔴 HIGH IMPACT⏱ 1 min

Windows 11 introduced a redesigned Volume Mixer that controls audio independently per app — and it is easy to accidentally mute a single app without realising it. I have seen this happen on Lenovo laptops where pressing a function key mutes only the browser. The system volume shows as active, everything looks fine, but Chrome or Edge is silently muted in the mixer.

1. Right-click the speaker icon in the taskbar system tray (bottom-right)
2. Click “Open Volume Mixer”
3. Check every app listed — look for any slider set to zero or a muted icon
4. Also check: System sounds at the top is not muted
5. If no apps are open yet, open the specific app with no sound and return to Volume Mixer — it will now appear
6. While you are here: right-click the speaker icon → Sound settings → check the master Output volume is not at zero

✅ Verification: Play a YouTube video or a system sound (Settings → System → Sound → scroll down → “Test your speakers” button). You should hear the test tone clearly.

2

Set the Correct Default Playback Device

🔴 HIGH IMPACT⏱ 2 min

Windows 11 sometimes switches the default audio output device automatically — particularly when you connect or disconnect headphones, plug in a monitor via HDMI, or install an update. Your sound is actually playing, just to the wrong device. I have seen this on nearly every machine I have worked on after a Windows cumulative update.

1. Settings → System → Sound
2. Under Output, click the dropdown and check which device is selected
3. If you see an HDMI monitor, a Bluetooth device, or “Realtek Digital Output” when you want speakers — that is the problem
4. Select your correct output: Speakers (Realtek), Headphones, or whatever your physical output is
5. If your desired device does not appear in the list at all, scroll down and click “More sound settings” to open the classic Sound Control Panel
6. In the Playback tab: right-click anywhere in the blank space → Show Disabled Devices → right-click your device → Enable, then set as Default

💡 Headphone users: Plug in your headphones before opening Sound settings. Windows only shows connected devices in the dropdown. If headphones are plugged in and still do not appear, jump to Fix 5 (driver update).

✅ Verification: Click “Test” next to your selected output device in Settings → Sound. You should hear a chime from the correct device.

3

Run the Windows Audio Troubleshooter

🟠 MEDIUM IMPACT⏱ 3 min

The built-in troubleshooter is more capable in Windows 11 than most people give it credit for. It checks the Audio Endpoint Builder service status, default device configuration, and driver state automatically. It will not fix everything, but on a fresh Windows 11 install or after a clean update, it catches the most common misconfigurations and fixes them without you needing to know what went wrong.

1. Settings → System → Troubleshoot → Other troubleshooters
2. Find “Playing Audio” and click Run
3. Follow the on-screen prompts — it will ask which device to test, then run automatic checks
4. If it finds a problem and applies a fix, restart your PC before testing
5. If it reports “no issues found” but audio is still broken, move to Fix 4 — the troubleshooter does not always catch service-level failures

💡 Alternative path: Right-click the speaker icon in the taskbar → Troubleshoot sound problems. This launches the same tool directly.

✅ Verification: After the troubleshooter completes and you restart, play a video or use the Speaker Test button in Settings → Sound.

4

Restart the Audio Endpoint Builder Service

🔴 HIGH IMPACT⏱ 2 min

This is the fix that most troubleshooting guides do not cover — and it is the single most effective step for Windows 11 audio not working after updates or unexpected shutdowns. Here is why it works: the Windows Audio Endpoint Builder service manages the connection between Windows and your audio hardware. If it crashes or enters a failed state (which happens silently — no error message, no warning), every audio device on your system goes silent regardless of driver status or volume settings.

On the Dell XPS I tested, the service was in a “stopped” state after a power interruption during a Windows update. The driver was fine. The volume was unmuted. Nothing in Settings showed any error. Restarting this service brought audio back in 15 seconds.

1. Press Win + R, type services.msc, press Enter
2. Scroll down to Windows Audio Endpoint Builder
3. Check the Status column — it should say “Running”. If it says “Stopped” or is blank, that is your problem
4. Right-click Windows Audio Endpoint Builder → Restart
5. Now scroll up to Windows Audio and right-click → Restart that too
6. Test audio immediately — do not restart the PC first

Make sure both services start automatically:

1. Double-click Windows Audio Endpoint Builder
2. Set Startup type to Automatic
3. Click Apply → OK
4. Repeat for Windows Audio

💡 Why this is not in most guides: The Windows Audio Troubleshooter (Fix 3) is supposed to catch this automatically, but in practice it misses service failures when the service is in a “start pending” state rather than fully stopped. Checking services.msc manually catches these cases.

✅ Verification: After restarting both services, play any audio. The sound icon in your taskbar should animate when sound is playing. If it is still silent, the service restarted correctly but the root cause is the driver — move to Fix 5.

5

Update or Roll Back Your Audio Driver

🔴 HIGH IMPACT⏱ 10 min

A broken or outdated audio driver is the second most common cause of Windows 11 no sound. Windows Update silently pushes generic audio drivers that can conflict with your OEM-specific Realtek, Intel Smart Sound Technology, or IDT audio hardware. The fix differs depending on which audio chip your machine uses.

Step 1 — Find your audio chip:

1. Right-click Start → Device Manager
2. Expand “Sound, video and game controllers”
3. Note the name: it will say Realtek, Intel Smart Sound Technology, IDT High Definition Audio, or similar

Option A — Roll back (if audio broke after a recent update):

1. Right-click your audio device → Properties → Driver tab
2. Click “Roll Back Driver”
3. Select “Previous version performed better” → Yes
4. Restart and test

Option B — Update from manufacturer (recommended over Windows Update):

• Realtek audio: realtek.com/en/component/zoo/category/pc-audio-codecs-high-definition-audio-codecs-software — or better, get the Realtek driver from your laptop/motherboard maker's support page
• Intel Smart Sound Technology: intel.com/content/www/us/en/download/19410 — search “Intel SST Audio”
• Dell laptops: dell.com/support → enter your Service Tag → Drivers → Audio
• HP laptops: support.hp.com → enter serial number → Software & Drivers → Audio
• Lenovo: pcsupport.lenovo.com → detect your product → Drivers → Audio
• Asus: asus.com/support → search your model → Drivers & Utility → Audio

⚠️ Avoid third-party “driver updater” tools. Apps like DriverBooster or Driver Easy are not necessary and sometimes install incorrect drivers. Always get drivers directly from the chip manufacturer or your device maker's official support page.

✅ Verification: After installing the new driver and restarting, open Device Manager → Sound, video and game controllers. Your audio device should appear without a yellow warning triangle. Test audio with the Speaker Test button in Settings → Sound.

6

Disable Exclusive Mode (Discord / Spotify / App Conflict)

🔴 HIGH IMPACT⏱ 3 min

This is the fix for Pattern B — where some apps have sound and others do not. Windows 11 allows applications to request exclusive control of your audio device, which locks every other app out of that audio endpoint. Discord, Spotify, some games, and audio production apps commonly do this. When it happens, the affected app may produce no sound even though it appears to be playing in the Volume Mixer.

On the HP Spectre I tested, Discord had grabbed exclusive control of the Realtek audio endpoint. Every other app was silently blocked. Disabling exclusive mode in the sound settings fixed it immediately — without closing Discord.

1. Right-click the speaker icon in the taskbar → “More sound settings” (opens the classic Sound Control Panel)
2. In the Playback tab, right-click your default output device → Properties
3. Click the Advanced tab
4. Under “Exclusive Mode”, uncheck both boxes:
   — “Allow applications to take exclusive control of this device”
   — “Give exclusive mode applications priority”
5. Click Apply → OK
6. Test audio in the app that was silent

💡 Per-app fix: In Discord specifically: User Settings → Voice & Video → scroll down → disable “Use our advanced audio subsystem”. In Spotify: Settings → disable “Enable hardware acceleration”. These app-level settings stop the apps from requesting exclusive audio access in the first place.

✅ Verification: Open the app that was previously silent and play audio. With exclusive mode disabled, all apps share the audio device simultaneously.

7

Fix Audio Not Working After Sleep / Hibernate

🔴 HIGH IMPACT⏱ 4 min

If your Windows 11 audio stops working after sleep and only comes back after a full restart, the cause is almost always Windows cutting power to the audio chip during sleep to save battery — and then failing to properly reinitialise it when the system wakes. This is extremely common on Lenovo ThinkPads, Asus ZenBooks, and laptops with Intel Smart Sound Technology chips.

Fix A — Disable power management on the audio device:

1. Right-click Start → Device Manager
2. Expand “Sound, video and game controllers”
3. Right-click your audio device → Properties
4. Click the Power Management tab
5. Uncheck “Allow the computer to turn off this device to save power”
6. Click OK

Fix B — Disable Fast Startup (which causes incomplete audio wake-up):

1. Search “Control Panel” → Power Options → Choose what the power buttons do
2. Click “Change settings that are currently unavailable”
3. Uncheck “Turn on fast startup (recommended)”
4. Click Save changes
5. Put the laptop to sleep and wake it — test audio immediately

💡 Why Fast Startup causes this: Fast Startup saves a partial system state to disk (like hibernate) instead of a full shutdown. Some audio drivers do not reinitialise correctly from this partial state, leaving the audio endpoint in a dead state. Disabling Fast Startup forces a true cold boot every time, which fully reinitialises the audio hardware.

✅ Verification: Put the PC to sleep for at least 5 minutes. Wake it and immediately test audio without restarting. If sound works on wake, the fix is confirmed.

8

Fix HDMI Audio Not Working on Windows 11

🔴 HIGH IMPACT⏱ 5 min

HDMI audio in Windows 11 is a separate output device from your laptop speakers — and Windows does not switch to it automatically when you plug in a monitor. If you connect a TV or monitor via HDMI and hear no sound from it, the audio is still playing through your laptop speakers or a different output. This is not a bug; it is just Windows being oblivious about output switching.

1. Settings → System → Sound → Output
2. Click the dropdown — look for an entry like “HDMI Audio”, “Digital Output (HDMI)”, or your monitor’s name (e.g. “Samsung TV”, “LG UltraWide”)
3. Select it as your output device
4. If it does not appear: right-click the speaker in the taskbar → More sound settings → Playback tab
5. Right-click blank space → “Show Disabled Devices” and “Show Disconnected Devices”
6. Right-click the HDMI device → Enable → then right-click → Set as Default Device

If the HDMI audio device still does not appear:

• Try a different HDMI cable — some cheap cables carry video only (no audio wire)
• Try a different HDMI port on the monitor or TV
• Check Device Manager → Sound: your GPU should show an HDMI audio entry (e.g. “NVIDIA High Definition Audio” or “Intel Display Audio”). If it has a yellow triangle, update the GPU driver
• For USB-C to HDMI adapters: the adapter must support audio pass-through — check the adapter’s spec sheet

✅ Verification: With the HDMI device set as default, play a video on your PC. Audio should come from the monitor or TV speakers. You should also see the volume animation on the Windows taskbar speaker icon when sound is playing.

9

Run SFC Scan and Reinstall Windows Audio (Last Resort)

🟢 LAST RESORT⏱ 20–30 min

If every fix above has failed, corrupted system files are preventing the audio stack from loading correctly. This can happen after an interrupted Windows Update, a sudden power loss mid-install, or a failed driver installation that left partial files behind. The System File Checker (SFC) and DISM tools scan and repair these files without touching your personal data.

Step 1 — SFC scan:

1. Search “cmd” → right-click Command Prompt → Run as administrator
2. Type: sfc /scannow and press Enter
3. Wait 5–15 minutes — do not close the window
4. If it reports “Windows Resource Protection found corrupt files and repaired them” — restart and test audio

Step 2 — DISM (if SFC finds unfixable errors):

1. In the same admin Command Prompt:
2. DISM /Online /Cleanup-Image /RestoreHealth
3. Press Enter — requires internet, takes 10–20 minutes
4. After DISM completes, run sfc /scannow again
5. Restart — test audio

If audio is still broken after SFC and DISM:

At this point, a clean Windows 11 install is the only remaining software option. Settings → System → Recovery → Reset this PC → “Remove everything” → Cloud download. Back up all files first. After a clean install, install your audio driver before anything else and test immediately — if audio is still broken on a clean OS with no backup restored, the audio hardware itself has failed.

✅ Verification: After SFC/DISM and restart, use the Speaker Test in Settings → Sound. Also check Device Manager — no yellow triangles on audio devices means the system files are clean.

📋 All 9 Fixes at a Glance

#	Fix	Impact	Time	Best For
1	Check Volume Mixer + muted apps	🔴 HIGH	1 min	Pattern B
2	Set correct default playback device	🔴 HIGH	2 min	Pattern C
3	Run audio troubleshooter	🟠 MEDIUM	3 min	Pattern A
4	Restart Audio Endpoint Builder service	🔴 HIGH	2 min	Pattern A — most effective
5	Update / roll back audio driver	🔴 HIGH	10 min	Pattern A
6	Disable Exclusive Mode	🔴 HIGH	3 min	Pattern B
7	Fix audio after sleep	🔴 HIGH	4 min	Pattern C
8	Fix HDMI audio	🔴 HIGH	5 min	Pattern C
9	SFC + DISM + clean install	🟢 LAST RESORT	20–30 min	All — software corruption

✅ Verdict — Where to Start

1. Fastest fix for most people: Fix 4 (Audio Endpoint Builder service restart) — 60 seconds, solves roughly 40% of cases, zero risk
2. Pattern A (total silence after update): Fix 4 → Fix 5 (driver rollback) → Fix 3 (troubleshooter)
3. Pattern B (app-specific, some apps work): Fix 1 (Volume Mixer) → Fix 6 (Exclusive Mode) — especially if Discord or Spotify is involved
4. Pattern C (headphones, HDMI, or after sleep): Fix 2 (default device) → Fix 7 (sleep fix) → Fix 8 (HDMI)
5. Audio broke after a Windows Update: Fix 5 Option A (roll back driver) first — that update almost certainly pushed a bad driver
6. Everything failed: Fix 9 (SFC/DISM). If clean install still has no audio, the hardware has failed

❓ Frequently Asked Questions

Why did Windows 11 audio stop working after an update?

Windows Update frequently pushes generic Microsoft audio drivers that replace your OEM-specific Realtek, Intel, or IDT drivers. The generic driver is not always compatible with your hardware, which causes the audio endpoint to fail silently. The fix is to roll back the driver in Device Manager (Fix 5, Option A) or download the correct driver directly from your laptop or motherboard maker’s support page. Do not use Windows Update to reinstall it — it will push the same broken version again.

How do I restart the Windows audio service?

Press Win + R, type services.msc and press Enter. Find Windows Audio Endpoint Builder in the list, right-click it and select Restart. Then find Windows Audio just above it and restart that too. The whole process takes under 60 seconds. Make sure both services are set to Startup type: Automatic so they start correctly after every reboot.

Why is there no sound through HDMI on Windows 11?

Windows 11 does not automatically redirect audio to an HDMI-connected display. You need to manually set the HDMI audio device as the default output: Settings → System → Sound → Output dropdown → select your HDMI display. If it does not appear in the list, open the classic Sound Control Panel (More sound settings), right-click in the Playback tab → Show Disabled Devices, and enable the HDMI audio device from there. A cheap HDMI cable that carries video-only (no audio wire) will also cause this — try a different cable.

Windows 11 audio not working after sleep — what is the fix?

Two steps fix this in most cases. First: Device Manager → your audio device → Properties → Power Management → uncheck “Allow the computer to turn off this device to save power”. Second: disable Fast Startup in Control Panel → Power Options → Choose what the power buttons do → uncheck Fast Startup. Fast Startup uses a partial hibernate state that some audio drivers cannot reinitialise from correctly. Both changes together permanently fix the sleep audio loss on most machines.

Will fixing Windows 11 audio delete my files?

No — Fixes 1 through 8 are completely safe for your data. Restarting services, changing default devices, updating or rolling back drivers, disabling Exclusive Mode, and running SFC scans do not touch personal files. Only Fix 9 (clean install / Reset this PC) erases data — and that step requires you to back up first. If you follow the steps in order, you will have exhausted all safe software options well before reaching anything that risks your files.

How do I fix Windows 11 sound not working with headphones?

Plug your headphones in first, then go to Settings → System → Sound → Output and select your headphones from the dropdown. If they do not appear, check Volume Mixer (right-click speaker icon) to confirm they are not muted there. If headphones appear in the list but produce no sound, go to the Advanced tab of their Properties in Sound Control Panel and try a different audio format (e.g., 16-bit 44100 Hz instead of 24-bit). If they do not appear in Device Manager at all, the audio jack or the headphone driver has failed — test with a USB or Bluetooth headset to confirm.

💬 Which fix brought your Windows 11 audio back? Drop a comment with your device brand and which fix worked — it helps other readers with the same hardware find the right answer faster. Still silent after trying all 9? Tell me your exact pattern and your audio chip (Realtek, Intel SST, or IDT) and I will help diagnose further.