Headphones plugged into the computer without sound?

Analysis:

1, Control Panel and sound changes the system sound, and then set the headset as the default, but when you plug in the headset you may not hear the sound of the headset, and the outside is still put, you put the song closed and reopened, so it can be.

2, the sound card driver has the problem. You can look inside the Device Manager first, whether there is a yellow question mark item, which means that a bit of driver has not been installed, in addition to the control Panel to find sound, audio equipment, to see whether the mute, and if you have a problem with your own computer interface or headphones have problems, is a hardware problem.

3, check if there is no mute. Whether the taskbar volume icon is minimized.