Windows says No audio output device is installed
Windows lost the driver for your sound card or it's disabled. Start by checking if the audio is muted or the volume is at zero. That catches most cases in 10 seconds. If that's not it, the driver needs reinstalling.
Your PC can't talk to the sound card because either the driver is missing, broken, or your computer is disabled. The driver is the software that Windows uses to control your speakers. Without it, Windows can't make sound at all. Most of the time this happens after a Windows update messes something up or if you unplugged something.
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Skip — I just want a technicianCommon mistakes to avoid
- Assuming the audio hardware is broken when it's really just the driver. 90% of the time it's a driver problem, not hardware
- Not restarting the computer after updating the driver. Windows needs a restart to fully apply driver changes
- Checking the main Windows volume instead of the app-specific volume in some programs. Some apps have their own volume controls
- Plugging in headphones but not switching the output device to them in the mixer
Signs you need professional help
- You've updated the driver and restarted but still have no sound Device Manager shows no audio devices listed at all You see an error message when trying to install the audio driver The audio device keeps disabling itself even after you enable it
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