The specific solution steps are as follows:

　　1. First, go to the device Du manager to see if there is a camera. If there is one, go to my computer and see the icon. Double click it to open it. If not, you need to install the camera driver.

　　2. You can turn on the camera through its video settings. Run QQ software, open "system settings", select voice video under the "friends and chat" tab, click the "video settings" button, then the video setting window will pop up, select the video device, you can see the preview picture of the camera, and adjust the picture to your satisfaction through the "picture quality adjustment" button.

　　3. There is no camera preview software in win7. With the help of a third-party software, the preview function downloads an amcap on the Internet, about 300K. After installation, put the amcap shortcut in the directory of C: user's local user name appdataroaming Microsoft Windows Network shortcuts, so that you can find this icon in "my computer".

　　4. In Windows 7, even if the camera is loaded well and can be used normally, its icon or shortcut can not be seen. What if you want to see the camera in the computer? You can only try: put the shortcut of the camera program in the computer.

　　5. On the drivers tab, click driver details to see the detailed path of the. EXE file (usually under the windows folder on the system disk). Turn on computer, and now you can see the camera icon.