I recently purchased a new graphics card (GTX 660Ti)and a new hard drive. I am having a common problem with NVIDIA drivers which consists of the problem in which when you run the driver installer you receive a message the message "NVIDIA Installer Failed".
I have a totally empty hard drive with just Windows 7 Installed, so it makes a lot of "fixes" irrelevant because they include clearing driver folders.
1) Open a command prompt with administrative priviledges and run "sfc /scannow"
2) Re-download the driver from the official Nvidia site or install it from a disk if you have it and upgrade to the newest version.
3) Run Windows updates if you haven't already.
4) Contact Nvidia.