In order for you to play LEGO Batman: The Videogame on Windows with minimal graphics settings, your computer must meet the following requirements
Supported OS:
Windows Vista®/XP
Processor:
Intel® P3 1.5 GHz or AMD Athlon™ XP
Memory:
256 MB RAM, 512 MB RAM required for Windows Vista®
Graphics:
128 MB with Shader Model 2.0 capability (Shader Model 3.0 recommended)