Sound constantly goes up and down.

i have pavilion dv6 notebook My wireless goes off and will not turn back on and my sound constantly goes up and down.can anyone pls tell me the solution for this problem?

Try a Hard Reset as follows.
Shut down the notebook, unplug the AC Adapter and then remove the battery.  Hold  down the Power button for 30 seconds.  Re-insert the battery, plug in the AC Adapter and start the notebook.
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    ****Click the White thumb to say thanks****
    ****Please mark Accept As Solution if it solves your problem****
    ****I don't work for HP****
    Microsoft MVP - Windows Experience

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    ****Click the White thumb to say thanks****
    ****Please mark Accept As Solution if it solves your problem****
    ****I don't work for HP****
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    Please give a" Kudos" if advice received is relevant or" Accept as Solution" if your problem has been solved.
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