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Win7 sound card driver normal computer no sound how to do

  
Win7 sound card driver normal computer no sound solution.
The steps are as follows:
1. In this case, the sound can be recovered only in a few simple steps.
Open in turn: Start--Control Panel---Realtek High Definition Audio Manager
2. Locate the yellow folder in the upper right corner and click the left mouse button to open it.
3. Tick [Disable front panel jack detection] and click OK. You will find that the disappearing sound is back.

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