Win7 Camera black screen reason
1, camera equipment is not plugged in well
2, the camera driver is not installed correctly
3, computer system problems (poisoning, etc.)
Win7 System camera startup failed to resolve
First of all, check the camera device connection is not plugged in, if normal to consider the driver of the problem
Drive Fix Method:
1, first right mouse click win7 System under the desktop "Computer" icon, and then choose "Management";
2, in the Open Computer Management interface Summary, click "Device Manager-" image equipment, and then the camera Head right button update driver;
3, in the pop-up window select "Browse the computer to find driver software";
4. Select "Select from the list of device drivers for the computer";
5, then select "USB Video Device" Driver update;
6, after the successful update display as a USB video device, such as the first unsuccessful, it is recommended to update again, and then restart the computer.