K4450 How to install the independent graphics driver correctly?

After installing the genuine Win7 system, install the Intel integrated graphics driver, then install the independent video drive, but how can not the independent video driver installation success.

Reason Analysis:

Lenovo Service Network Production provides a stand-alone graphics driver is a file containing Intel and Nvidia two graphics card, double-click the driver to install the file is first extracted, and then the installation of the installer will be directed to the Intel graphics driver, rather than nvidia independent graphics driver.
Solution:

If there is no driver can go to Lenovo Service channel driver download channel ;

The name of the download good NVIDIA graphics driver is called NVIDIAVGA;

The process of double-clicking its file installation is as follows:

This step needs to be noted that the path is installed, it will be Intel and Nvidia graphics driver simultaneously extract to this default path, of course, this path can also be modified.

Then find the Nvidia folder;

Double-click the setup installation.

Note:
Of course, if you want to install a standalone graphics driver, you need to first install the Intel integrated graphics driver.