I recently sold one of these so i know people will ask you this a million times Windows Vista system requirements If you want to run Windows Vista on your PC, here's what it takes: 1 gigahertz (GHz) 32-bit (x86) or 64-bit (x64) processor 1 gigabyte (GB) of system memory (512 megabytes (MB) for Home Basic) 40 GB hard drive with at least 15 GB of available space (20 GB for Home Basic) Support for DirectX 9 graphics with WDDM and 128 MB of graphics memory (32 MB for Home Basic) DVD-ROM drive Audio Output