Total Defense Tune Up V4 - Download Type: System Optimization Operating Systems Supported: Windows System Requirements: Supported Processors - 300MHz or faster Disk Space - 30MB or larger Internet - High-speed Internet connection recommended Supported Platforms - Windows 8 (32 & 64-bit) - Windows 7 (32 & 64-bit) - Windows Vista (32 & 64-bit) - Windows XP (32-bit), Professional, Home, Media Center or XP Packaging: Download
