Apple today released Boot Camp Software Update 3.3 for Windows, an update to the company's software to enable Intel-based Macs to natively run Windows operating systems.
About Boot Camp Software Update 3.3 for Windows
The Boot Camp 3.3 update includes critical bug fixes and hardware support. It is recommended for all Boot Camp 3.2 users.
The update weighs in at 199.75 MB and requires Windows 7 (32 bit or 64 bit) and an existing installation of Boot Camp 3.2.