Windows 7 computer shows no speakers connected

If we connect speakers or headphones on win7 and find that there is no sound, and when we check the device we find that the speaker is not connected to the computer, what should we do at this time? In fact, it can be solved by opening the control panel.

The speaker shows that it is not connected to the computer win7:

1. First open the "Control Panel" in the lower left corner

2. Then enter "Hardware and Sound" in the control panel

3. Then change the viewing mode to "Small Icons" ” and open the “Realtek High Definition Audio Manager” settings.

4. Then open the icon in the upper right corner, check both options and "OK" to solve the problem.

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