Because these drivers are unsigned and modified, Windows 7 64-bit will naturally try to block them. Follow these steps to install them safely. Step 1: Source a Reliable Patched Driver

The official Intel driver package (v14.34.0.64.0) explicitly blocks installation on Windows 7 64-bit via an .INF file check. Without a patch, your 64-bit OS will treat the card as a basic VGA device, capped at 800x600 or 1024x768 resolution with no hardware acceleration.