Win7 audio service is not running how to do

Question: I installed Windows7 Ultimate, today suddenly the small speaker in the lower right corner shows the red cross, the mouse moves to the above to display "audio service is not activated". I thought it was a sound card problem. I could open the device management and watch it. The sound card is fine. The music is also normal. I don’t know what happened. I ask everyone to help answer the next question. How to solve it? Thank you. Red line

Solution:
1, Windows7“Audio service is not running”, there is a red small fork to do? User tricks simple way: point small speaker, put the volume to the maximum
2, windows7 audio service can not start can open the control panel management tools, open the service list, select windows audio service, right-click properties, select the login tab, modify the login option for the local system account, and then apply. Then modify the login option to the specified account, browse to select the local service account, and then confirm that the application will be restored after the restart.
3, if your system is Windows 7 Ultimate, there is such a problem. Steps: "Desktop computer right click "Management" service and program application "Service" to find windows audio this service "click right" restart windows audio this service problem is OK
4, windows7 audio service is not started or may be a driver problem , try the driver!