Hi Paunitza ,
Yes , I understood that Your software does not have the sound , I'm interested did You instaled Itunes for example or some other spesific software.It can do some mess in the computer.
Hovever , You can thry this:
1. You can restore windows on the time when was no problem with sound.
http://pcsupport.about.com/od/fixtheproblem/ht/system-restore-windows-7.htm
2.You can choose to refresh Your win7
Turn off the computer.
Disconnect all connected devices and cables such as Personal Media Drives, USB drives, printers, and faxes. Remove media from internal drives, and remove any recently added internal hardware. Do not disconnect the power cord .
Turn on the computer and repeatedly press the F11 key, about once every second, until Recovery Manager opens.
Recovery Manager
Under I need help immediately , click Microsoft sistem recovery
There will be no changes on Your personal files , it will just refresh Windows image.
3, You an wisit Microsoft fix it center
http://support.microsoft.com/fixit
Please , report if the problem persist,
Sretno,wish You all the best!!!
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