No sound or wrong output device
Question
There is no sound, or audio plays on the wrong device (headphones vs speakers, HDMI monitor, etc.). What should I check?
Answer
1. Pick the right output
Settings → System → Sound → Choose where to play sound. Select the device you are actually using.
Open the volume mixer (click the speaker icon on the taskbar, then Mixer or open Sound settings and scroll to Volume mixer). Each app can have its own output device in recent Windows versions. Set your game or browser to the correct one.
2. Physical routing
If you use a monitor over HDMI or DisplayPort, Windows may switch default audio to that display. Either choose your headset/speakers as above or disable the monitor’s audio device in Sound if you do not use it.
3. Restart the Windows Audio stack
Sometimes the audio service or driver session glitches after sleep or updates.
- Ctrl+Shift+Esc → Task Manager → Processes → find Windows Audio (if listed) or restart from Services.
- Or Win+R →
services.msc→ find Windows Audio → Restart.
Rebooting the PC still fixes a surprising number of one-off audio failures.
4. Driver
Device Manager → Sound, video and game controllers → right-click your device → Update driver, or reinstall the driver from your motherboard or headset vendor (avoid random “driver updater” tools).
If sound broke right after tweaks or debloating, a related service may have been disabled. Compare against a restore point or a clean Windows profile if nothing above helps.