Unlike Home Basic or Business editions, Ultimate was designed as the “no-compromise” SKU. It bundled every feature Microsoft had to offer:
Windows Vista Ultimate is the top-tier consumer edition of Microsoft’s Windows Vista family, combining consumer features (like the Media Center and premium extras) with business capabilities (like BitLocker support). The “x64” denotes the 64-bit architecture, allowing the OS to address more memory and run 64-bit applications natively. SP2 (Service Pack 2) is the cumulative update package that includes patches, hotfixes, and compatibility improvements released after SP1. “Final ENU April Exclusive” implies a final localized English release distributed or highlighted in April. windows vista ultimate x64 sp2 final enu april exclusive
For those lucky enough to find an ISO of windows vista ultimate x64 sp2 final enu april exclusive, here is what you can expect from the installation media: Unlike Home Basic or Business editions, Ultimate was