How to Fix Sound Not Working After Windows Update on Windows
Audio stopped working after installing a Windows Update? No sound, missing audio devices, or driver errors after updating? Fix post-update audio issues on Windows 10 and 11.
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Main Troubleshooting Guide
How to Fix No Audio or Sound →Complete symptoms, causes, and step-by-step solutions
Symptoms
You might be experiencing this problem if you notice:
- •No sound at all after installing a Windows Update
- •Audio device shows "No audio output device is installed"
- •Sound icon in taskbar shows a red X after update
- •Audio device present but no sound comes out
- •Audio driver reverted to generic "High Definition Audio Device"
- •Realtek, Intel, or manufacturer audio drivers replaced by Windows Update
- •Audio was working fine before the update, nothing else changed
Common Causes
- ⚠Windows Update replaced the manufacturer audio driver with a generic driver
- ⚠Update broke compatibility with the existing audio driver version
- ⚠Audio enhancement features disabled or reset by the update
- ⚠Windows Update disabled the audio endpoint device
- ⚠Audio services stopped after update and didn't restart
- ⚠Cumulative update known to cause audio regression (documented Microsoft issue)
- ⚠BIOS-level audio setting changed by firmware update bundled with Windows Update
Solutions
Solution 1: Roll Back Audio Driver
- 1Open Device Manager → Sound, video and game controllers
- 2Right-click your audio device → Properties → Driver tab
- 3Click "Roll Back Driver" (if available / not greyed out)
- 4Select reason: "Previous version of the driver performed better"
- 5Restart the computer
- 6If Roll Back is greyed out: the previous driver version is no longer stored
- 7In that case: proceed to manually reinstalling the manufacturer driver
Solution 2: Reinstall Manufacturer Audio Driver
- 1Identify your audio hardware: Open Device Manager → Sound → note the device name
- 2Common chipsets: Realtek (most laptops/desktops), Intel Smart Sound, Conexant, Synaptics
- 3Download the latest driver from your PC manufacturer's support page (not generic Realtek)
- 4Example: Dell → dell.com/support → enter Service Tag → Drivers → Audio
- 5Uninstall current driver: Device Manager → right-click audio device → Uninstall → check "Delete driver software"
- 6Install the downloaded manufacturer driver
- 7Restart — the manufacturer driver should take priority over the generic Windows one
Solution 3: Restart Audio Services
- 1Press Win+R → type services.msc → Enter
- 2Find "Windows Audio" → right-click → Restart
- 3Find "Windows Audio Endpoint Builder" → right-click → Restart
- 4Ensure both are set to "Automatic" startup type
- 5If they won't start: right-click → Properties → check "Log On" tab → make sure it's set to "Local System"
- 6Also check: "Audiosrv" dependencies — it depends on several other services
Solution 4: Block Windows from Replacing Audio Driver
- 1After restoring your working audio driver:
- 2Open Group Policy (gpedit.msc) → Computer Configuration → Administrative Templates
- 3Windows Components → Windows Update → "Do not include drivers with Windows Updates"
- 4Set to Enabled — this prevents future updates from overwriting your audio driver
- 5Alternative for Home edition: Settings → System → About → Advanced system settings
- 6Hardware tab → Device Installation Settings → "No" for automatic driver downloads
- 7This prevents the update-breaks-audio cycle from repeating
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