Win7 system plugged into headphones or stereo without sound failure solution

Windows
7 system, computer
no sound, no matter whether it is a speaker or a headset, speakers and headphones are Ok, the hardware should be fine. I just reinstalled the system. Is it because of this? Computer
There is no sound in the headphones or speakers?

Operation Steps

In fact, Windows 7 comes with a very good tool that can help you find and solve problems very easily. It can scan your computer and detect the root cause of common problems. This is the built-in system diagnostic tool.

Open the Start menu and select Control Panel.

In System and Security, choose to find and fix the problem.

Turn on hardware and sound.

Under Sound Options, select Play Audio; in the Play Audio dialog box, click Next.

In the fault dialog, select Headphones and click Next; at this point, it will give a diagnostic message: the peripheral is not plugged in; and a fix is ​​suggested: plug in Speaker or earphones.

At this point, if you plug in the headphones or speakers and click the Next button, the system will automatically change the repair and give the following dialog.

And if you don't plug in the headphones or speakers, just click the Next button and the system information will change to the following.