What should I do if the Win7 computer camera cannot be used?

Some users in the win7 Ultimate system sometimes use the computer camera when they find it can not be used, open failure, if you have encountered such a thing, you must use the camera, we will learn how to solve the following Unavailable method!
Remedy: First we need to check the reason why our camera can't open, check if the plug of our camera is connected, whether the camera driver is installed in the computer, the computer Is there any poisoning, carry out anti-virus measures, if the first one may be excluded, if it is a driver problem, we need to fix the driver.

1, we use the mouse to click on the computer icon right-click, then select this option to see the management of it.
2, in the open win7 computer management new window, we choose the device manager - image device - camera - update the driver this option.

3, found in the newly opened window "Browse my computer for driver software" option, then choose to download our good camera driver, select the video device driver updates usb column, we wait for win7 After the driver update is fixed, restart the computer to see if the camera is ready for use.