Suddenly, I can't hear any audio played in my speaker and my earphone when I insert in the jack audio

[Yem_Diana]

Hii, I'm having a problem. I can't hear any audio played when I'm watching you tube. I already tried to restart and using the tips from similliar discussion here, but still it didn't work. I try to check at the control panel in the sound section, it didn't show "speaker" option. Is there something wrong with my laptop? Thank you. I really want to give the screenshot of the problem, but it keeps erroring when I post it.

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