In the actual work of ASUS A55VM series in serving customers, due to communication barriers or differences in understanding, problems that were originally very easy to solve could not be solved after a long time. With the popularity of Win7 operating system, this problem has a good solution. Customers can use the troubleshooting function that comes with the Win7 system to conduct preliminary interactive troubleshooting of system problems, which is worth promoting. Now we use system mute as an example to introduce the "troubleshooting" function of Win7 system:

　1. Click the flag-like icon on the taskbar logo, in the pop-up dialog box, click "Open Action Center".

2. In the main menu of "Action Center", click "Troubleshoot".

3. In the pop-up menu, click Audio Playback Troubleshooter.

4. In the pop-up dialog box, click Next. At this time, the system will automatically detect the problem, and it may take some time.

5. Finally, the WIN7 system successfully detected the system mute problem and solved it.