solution is as follows:
1, first open the device manager Win7 system;
2, then the Device Manager inside the top row (PC is you Username line);
3, right click "add obsolete hardware", follow its steps to add "image device" if the camera shows a small exclamation point (if not, the equipment room is normal) );
4, download the latest driver on the official website of the notebook, or use the driver wizard, and restart with the newest driver. If it still doesn't work, it is a hardware problem. After the sale.
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