To run Vista Business SP2 effectively on a 32-bit (x86) architecture, your system ideally met these "Premium Ready" standards: 1 GHz 32-bit (x86) or 64-bit (x64) processor.
A DirectX 9-capable processor with a WDDM driver and at least 128 MB of memory to support the Aero Glass interface.
Enhanced Wi-Fi performance and added native support for recording data to Blu-ray media.
Added support for VIA Technologies’ 64-bit CPUs and improved compatibility with newer hardware.
The Business edition featured advanced networking and backup tools, including Remote Desktop and Complete PC Backup , which were essential for corporate environments. System Requirements for 32-bit Vista Business
A blog post about provides a look back at an operating system that, while often criticized, was a significant step in the evolution of the modern Windows desktop. For many, Service Pack 2 (SP2) was the version that finally delivered the stability and performance promised at launch. Key Features and Improvements in SP2
Released in 2009, Service Pack 2 was a cumulative update that included all previous security patches and several notable features:
At least 1 GB of RAM (though 2 GB was recommended for better multitasking).