What about vista system without sound?

My Vista system has no sound, the system has built-in sound such as switch machine sound and the sound of the Web playback music or video are gone, and the task system tray Volume control icon is also missing. However, the use of Windows Media Player, KMPlayer, chin listening and other playback media files can hear music, QQ, MSN and other software sounds can be normal to hear. For this reason, I checked the control Panel to verify that the sound settings are OK and sound files are intact. The Device Manager has also been checked and the sound card driver has been reset. But the result is still the same, the system has no sound, the Web page is not sound, now helpless, how should we solve it?

A: Click Start menu → run enter "regedit" and return to open Registry Editor, in the left pane click "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion \drivers32 ", and then in the right-hand pane check for" Wavemapper "value. If not, right-click in the right pane, create a new string value named "Wavemapper," and then double-click the value to set its value data to "Msacm32.drv". Also, if there is no sound when you play Flash animations, you can also use this method to resolve them.