Question about Dell Inspiron 640m PC Notebook
Go to device manager
right click my computer/manage/device manager
uninstall your audio device, it will reinstall automatically (you may need to reboot to force this)
right click on the speaker icon on your system tray and set your default playback device if its not already done.
This should fix it
Posted on Jul 10, 2010
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Posted on Jan 02, 2017
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