Sound stopped working

hi, i've got a laptop windows vista and i've switched on my computer today and got no volume, it says no audio output device is installed. it was working yesterday but not now.

can you please help
 
Make sure that the driver is installed and that the device is working properly

-Baltan
 
Please first uninstall the audio drivers, or onboard drivers. Then reinstall your sound.gl,
 
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