In order for you to play Post Master on Windows with minimal graphics settings, your computer must meet the following requirements
OS *:
Windows XP (SP3)/Vista/7/8
Processor (CPU):
Dual core CPU 2.4 GHz
Memory (RAM):
2 GB RAM
Graphics Card:
Dedicated graphics card with 256 MB memory
DirectX:
Version 9.0
Storage:
500 MB available space
Sound Card:
DirectX 9 compatible sound