If your HP laptop experiences fuzzy audio output after a windows update, you may correct the issue by usings the following steps:
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Click the start menu, either start typing "control panel", or scroll down to "Windows System" and click "Control Panel".
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Once in Control Panel, click hardware and sound.
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Next click Sound
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Once in the Sound menu, right click on your audio device, and select properties.
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In the Properties menu click the Enhancements tab, next check the box under "System Effects Configuration" that states, “Disable all sound effects”, then click apply.
The laptops audio should now fixed.