Solution:
Click on "Menu" - click on "Control Panel" - click on "Hardware and Sound" - click on "Realtek High Definition Audio" - click on "Hardware and Sound" - click on "Realtek High Definition Audio". -Click on "Hardware and Sound" - Click on "High Definition Audio Manager" - Click on "High Definition Audio Manager". -Click on the icon that looks like a folder in the upper right corner and click on it - Check the box "Disable front panel jack detection". --OK