Hi LaMotta,
I had the same problem as you, it turned out that we have existing drivers on our system (is yours a Dell?)
See here for the solution/work-around: Windows* 7/8/8.1 Driver (32 & 64 bit) Version 3345:
"If you are having trouble with installing the driver, it can be for various reasons. Most commonly, it is because your system currently has a driver that was installed by your OEM, and those drivers present various error messages to the effect of "this driver is not suitable for your computer because your OEM said so!". If that is the case, you should follow the Manual Driver Installation instructions to install your driver (this is prefaced by downloading the .ZIP version of the driver from the links above)."
Here is the solution: Graphics — Computer Manufacturer Graphics Driver Detected