Office 365 Documentation

Modern websites will struggle to load in older browsers, and using them poses a significant security risk.

Certain industrial or creative applications were built specifically for the Vista/7 era.

While the build is the most secure version of Vista available, it is still an unsupported operating system. It does not receive modern security patches, making it vulnerable to contemporary exploits. If you plan to use this build:

The build is the definitive way to experience what Vista should have been at launch. It is a stable, complete, and polished piece of computing history that serves as a bridge between the classic XP era and the modern Windows era.

Windows Vista Ultimate x64 SP2 (April 2017 Gen2): The Final Evolution of a Legacy OS