Win7 system computer camera can not be used for what reason

Some users in the reaction to use Win7 Ultimate system will appear suddenly unable to use the camera, the display is open failure, such a situation, many customers do not know how to Solved, I thought my camera was broken. In fact, sometimes it is not like this. We can use some exclusion methods to see what kind of reason is there. We can all look at the solution!
Let's first take a look at what may be caused by the failure of the camera to open. First check if the power of your camera is plugged in to see if it is unconnected and not usable. If you see if the driver is installed successfully, is it not? It has been tampered with and cannot be used.
Second, we saw at the time of inspection if the win7 camera is good, then we need to see if the driver may be damaged and need to be repaired in order to use.
1, we click on the computer and then right click to see the management open, then see the image device option in the management window opens, select the camera option, and then choose to update the driver to fix.
2, then we open win7 new window to see the choice of driver software to find this option, and then select “ select from the list of computer device drivers & rdquo; click to open, and then select the driver inside the USB video device Update function, restart after the update is completed, you can use it when you open the camera and repair it successfully.