In order to play Muv-Luv Alternative on Windows with maximum graphics settings, you need a computer with a configuration no worse than the following
OS *:
Windows 8.1, Windows 10
Processor (CPU):
Windows 8.1 / 10 Tablets - Intel Atom Z, Microsoft Surface Pro 4, Samsung Galaxy Book
Memory (RAM):
2 GB RAM
Graphics Card:
16:9 high resolution display
Storage:
4 GB available space