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1) Device Manager > Left click Realtek High Definition Audio > Update Driver, and it said the best driver is already installed.
2) Speaker Properties > Enhancements > Disable all sound effects, and it didn't change anything.
3) Troubleshoot Sound Problems > It gave me the option to reinstall current audio driver automatically then restart laptop and didn't work as well.
4) I tried update Realtek high definition audio driver.
Sorry for my english and thx for every advice.