Hi.
Check if sound from laptop speaker is working.
If sound from laptop speaker is not working, go to control panel, check first the audio properties, and ensure that the sound is not muted.
On Vista you have to double click on the playback device to get properties.
audio properties can also be explored starting the mixer by clicking the audio icon located near to the clock.In the example below the audio is muted:
In control panel also check if there is an installed audio device going to device manager.
If the audio adapter is not present , or if the audio adapter has a yellow mark on top, then you will need to reinstall the audio adapter drivers. The drivers are available online, on the laptop manufacturer's website.
On HP, Acer and several other brand models there is also a bag that can affect the use of headphones only.
In that case when you plug in the headphones, you get no sound, or the sound is still reproducedd through the laptop speakers.
The trick to fix this bug is restarting the laptop with the headphones plugged in twice, then removing headphones and restarting again.
If all the above does not work there may be an hardware fault, like a broken contact in the audio jack soldering joints.
Regards.
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