Win7 system USB video device black screen solution

1. Right click on the “Computer” icon and select “Manage”;
2. In the open computer management interface, click “Device Manager - Image Device”, then select the camera under the image device, right click and select “ Update the driver."

3, will pop up a window update driver software, select "Browse my computer for driver software";
4, select "Choose from a list of device drivers in the computer."
5, pop-up selection for this hardware installed device driver, select "USB video device" driver update at the model.

6, after the update was successful as a USB video device, if not successful the first time, can be updated once again, and then restart the computer on OK.