1, first check our sound card installed well no. Right click on "My Computer", left click "Properties", click "Device Manager".
2, check these two places there is no yellow exclamation mark, if there is, it shows that the sound card is not installed, you need to Baidu your own model of the graphics driver, and then download the installation; If not, we do the next step.
3, right button "My Computer", left-click "Properties", click "Control Panel Home page". Open the Control Panel home page and select hardware and sound.
4, click the "Realtek high-definition Audio manager option", into the Realtek high-definition Audio Manager interface, will appear "you will see a blank page, because the system does not have access to audio equipment." To start the GUI, connect the audio device to the system. Prompted
5, click on the map labeled "Jack Settings", the "Disable front panel jack detection" option on the hook, appear in the third picture of the interface, the problem solved.