Sound,video and game controller missing!???

Discussion in 'Windows 7 Hardware' started by calm2maniac, Oct 23, 2010.

  1. calm2maniac

    calm2maniac New Member

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    after installing win7 , my sound driver was working perfectly until one day it the sound icon went " no output device installed'...and when i checked the device manager, there was no more "sound,video and game controller"...

    and it shows "unknown device on internal High Definition Bus audio" under "other devices"...

    [​IMG]
     

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