Volume Goes Up and Down - HP Notebook 15

Volume goes up and down in your HP Notebook - 15.

Need not worry, try below troubleshooting steps which will fix this issue.

Try updating the drivers for your sound card.
  1. Click on start and then control panel.
  2. Click System>Device Manager. 
  3. In Device Manager, expand "Sound Video and Game controllers", right-click on the audio driver.
  4. Click on uninstall.
  5. And then restart your computer. Audio driver will automatically update.

Hp 15 has Dual speakers; DTS Studio Sound™.
This package provides the driver for the Realtek High-Definition (HD) Audio in supported notebook models that are running a supported operating system.

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