Realtek AC97 audio not outputting on windows 7.some drivers are not installed an

my audio outputting was working perfectly fine.After upgraded to windows 7,it just stopped working 3 days ago.i checked the properties and says working fine.Then check on drivers,not all are installed anymore,its like they just went away.the ones that say no driver installed also says not digitally signed.and cannot get the drivers to install????????IM AT A LOSE HERE AND IM VERY GOOD WITH COMPUTERS,I WORK ON THEM.......
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  1. Hi:)

    Reinstall the sound drivers...

    All the best Brett :)
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