In the annals of operating system history, few names spark as much debate as . While often remembered for its rocky launch, the "Final ENU" (English United States) release of Windows Vista Ultimate x64 with Service Pack 2 (SP2) represents the absolute pinnacle of what Microsoft intended for the OS.

For retro-builders, finding a clean, untampered ISO of Vista Ultimate x64 with SP2 slipstreamed is a goldmine. It saves hours of updating and ensures the OS is as secure as it possibly can be without modern browser support.

All security patches up to April were baked into the installer.