Malwarebytes Anti-Malware Premium + Anti-Exploit Premium - 3 PCs / 1 Year Type: Antivirus Version: Premium Operating Systems Supported: Windows System Requirements: Operating Systems: Windows 8.1 (32-bit, 64-bit) Windows 8 (32-bit, 64-bit) Windows 7 (32-bit, 64-bit) Windows Vista (32-bit, 64-bit) Windows XP (32-bit, 64-bit) Hardware Requirements: 1024MB of RAM (256MB for Windows XP) 800MHz CPU or faster 10MB of free hard disk space 800x600 or greater screen resolution Packaging: Retail