|This problem happens with other brands of graphics cards, too. I have AMD brand and this happens to me, too.|
You should do as I suggest.
When you double-click or click the driver file downloaded from Nvidia, the file expands to a location and the installation starts from there. Note the location of the expanded driver files.
Now, open device manager, expand the display adapter and double-click the Nvidia adapter. Click the driver tab and click update driver...
Now show the path to the driver information file. The driver information file has the .inf extension.
I do not have an Nvidia gfx card. Therefore, I cannot tell you the exact location of the .inf file. But I guess you should go very far down the nested folders to find the .inf file. In fact you do not select the .inf file. Just select the folder in which the .inf file resides and you are done.