First, check whether the Device Manager has a graphics device
Right-click the desktop computer icon, select Manage, click Device Manager, as shown in the following figure:
The graphics device will be displayed here. If you do not have a driver or driver problem, you will see a question mark or an exclamation point or display as a standard VGA video device (Windows 7 system) or a Microsoft Basic display adapter (Windows 8 and above system). If none of these, try to enter the BIOS, press F9 to restore the default, and then press F10 Save, restart the computer and try again.
If the above scheme operation is invalid, please bring the computer to the nearest service station for testing and debugging.
Click here to search the service station address information.
You can make an online reservation for the repair.
Second, if the device exists, only the driver can not be installed, you may refer to the following instructions to install the test manually.
For example, the WIN8 system is the same as an example of a video card gt630m with dual graphics automatically switching to a Windows 7 system.
1. Enter the Device Manager, in the exclamation mark of the video card click the right mouse button to choose the updated driver;
2. Browse the computer to find the driver software;
3. Select from the list of device drivers for your computer, and next;
4. From the disk installation, the next step;
6. Select the INF file of the video card, click Open (How to find the N card inf file, please refer to the last remark of this article);
9. The computer will start to install the drive, waiting for the driver to automatically install complete.
10. The following figure is the state of the driver installation.
Note:
The most important step in the update drive is to know the path to the INF file, and the NVIDIA graphics-driven INF file path is typically in the Display.driver folder where the graphics driver unzipped, as shown in figure:
