Using the self-healing function to deal with the problem that the computer has no sound

What is Win7's "self-healing" system? In fact, Win7's "find and solve problems" function, when the Win7 system encounters problems or errors, it can help us scan the problem, find out and solve some common problems.

at home on computer systems does not say anything, for example, we assume that computer hardware is working properly, but the headset is not plugged in, and see what kind of system will give us tips. Open the Start menu, Control Panel, in System and Security, select Find and solve the problem.

open Hardware and Sound, under the sound options, select the audio playback, audio playback dialog box, click Next.

fault dialog box, select Headphones, and click Next; this time, it gives diagnostic information: no plug in peripherals; and gives Advice: plug in speakers or headphones.

At this point, if you insert headphones or speakers, and click the Next button, the system will automatically change to repair, and to place the following dialog box:

And if you do not plug in headphones or speakers, click on the Next button, the system will become the following information:

so, simply select the item to be the investigation of choice, the system will automatically help us check, and given the appropriate repair recommendations, than please It is convenient and quick for people to help.