Microsoft® Windows® XP with Service Pack 3 Windows Vista® Home Premium, Business, Ultimate, or Enterprise with Service Pack 1 (Service Pack 2 recommended) or Windows 7.Processor with 64-bit support required for Adobe Premiere Pro and After Effects.Intel® Pentium® 4 or AMD Athlon® 64 processor (Intel Core™2 Duo or AMD Phenom® II recommended) Intel Core 2 Duo or AMD Phenom II required for Adobe Premiere Pro.