Windows 11 no sound almost always traces back to one of four things: the wrong output device is selected, the audio service has stopped, a driver update broke something, or a recent Windows update reset your sound settings. The fix depends entirely on which one you’re dealing with, so start by ruling them out in order rather than guessing.
Windows 11 No Sound? Check the Obvious First: Wrong Output Device
This causes more Windows 11 no sound reports than any actual hardware or software problem. If you’ve plugged in headphones, connected a monitor with speakers, or paired Bluetooth audio recently, Windows may still be routing sound to a device that isn’t active anymore.
- Click the speaker icon in the system tray (bottom right)
- Click the small arrow or device name next to the volume slider
- Select the correct output device from the list
If the device you expect isn’t even in that list, skip ahead to the driver section below.
Run the Built-In Audio Troubleshooter
Windows 11’s audio troubleshooter catches a surprising number of cases the manual checks miss, and it takes under a minute to run. Microsoft’s own official audio troubleshooting page covers this same tool in more depth if you want the full reference.
- Go to Settings – System – Troubleshoot – Other troubleshooters
- Find Playing Audio and click Run
- Follow the prompts – it checks the audio service, output device, and driver status in one pass
Restart the Windows Audio Service to Fix No Sound Issues
Windows 11 no sound issues often come down to the audio service silently crashing in the background, which the troubleshooter above doesn’t always catch on its own.
- Press Windows key + R, type
services.msc, press Enter - Scroll to Windows Audio
- Right-click and select Restart (or Stop, wait five seconds, then Start if Restart is greyed out)
- Also check Windows Audio Endpoint Builder right below it – restart that one too if it isn’t running
Update or Roll Back the Audio Driver
If sound worked fine before a recent Windows update or driver update and stopped right after, the driver is the likely culprit. Two different fixes apply depending on the direction of the problem.
If sound broke after an update: open Device Manager, expand Sound, video and game controllers, right-click your audio device, and select Properties – Driver tab – Roll Back Driver. This option stays greyed out if no previous driver is stored, in which case try the update path below instead.
If the driver seems outdated or missing entirely: still in Device Manager, right-click the audio device and select Update driver – Search automatically. Check your PC manufacturer’s support site directly if Windows finds nothing, since Windows Update doesn’t always carry the latest audio drivers.
Check for a Muted Volume Mixer
Windows 11’s per-app volume mixer can silently mute individual apps without muting the system overall, which looks identical to a broader audio failure until you check it specifically.
- Right-click the speaker icon in the system tray
- Select Open Volume mixer
- Check that the specific app you’re expecting sound from isn’t muted or turned down independently
If the muted app happens to be Discord specifically, our Discord audio troubleshooting guide covers a few app-specific settings that sit outside Windows entirely.
Frequently Asked Questions
Why did Windows 11 sound stop working after an update with no other changes?
Windows updates occasionally reset the default audio output device or replace the current driver with a generic one, both of which silence audio without any hardware actually failing. Checking the output device and rolling back the driver, in that order, resolves most of these cases.
My speaker icon has a red X or warning symbol on it. What does that mean?
That icon means Windows can’t detect any active audio output device at all, which usually points to either a disabled audio service or a driver issue rather than a muted setting. Start with the Windows Audio service restart above.
Sound works with headphones but not speakers, or vice versa. Why?
This is almost always the wrong output device being selected rather than a hardware fault, since Windows only sends audio to whichever device is currently set as default. Switching the output device in the system tray fixes this in most cases.
Final Thoughts
Start with the output device check since it fixes the majority of Windows 11 no sound cases in under a minute. Work down through the service restart and driver check in order if that’s not it – between the three, they cover almost every non-hardware cause of audio failure on Windows 11.
Tested on: Windows 11 24H2, 25H2 – Updated September 2026
