What if Red Cross occurs in the audio manager in the lower right corner of win7?

There are two methods to start the audio service in windows:

Method 1

1. If there is a cross sign in the lower right corner of the win7 desktop menu bar, but the computer has sound, this proves that the audio service is already running properly.

2. Right-click my computer and click "Manage" in the pop-up command bar ". The manage properties dialog box is displayed.

3. Find "services and applications" and click "services ".

4. In the list of services opened on the right side, find windows audio and the program under it, and change the status to "started" and "automatic ".

Method 2:

1. Click the small Horn symbol in the lower right corner to bring up a control bar that controls the sound size.

2. Move the mouse up and drag the sound slider to the top. The Red Cross disappears.