ATI Drivers Update Utility For Windows 7 64 bit updates your Windows 7 64 bit drivers for ATI Laptops automatically. It will scan your Windows 7 first then download and install 64 bit ATI official drivers to your ATI Laptop. The ATI Driver Utility keeps your Windows 7 x64 (64 bit) system up-to-date. It detects which driver updates are relevant to your computer, and then helps you install them quickly and easily.