MSI recommends Windows 8.
Windows 8.1
The latest 4th generation Intel® Core™ i7/i5 Processor
NVIDIA GeForce 840M 2GB VRAM DDR3
17.3" WHD+ (1600x900)/FHD(1920x1080) Anti-Glare
Killer™ E2200 Game Networking for smarter, faster, networking for all online entertainment
Keyboard made just for gamers by SteelSeries
Solid State Hybrid Drive (SSD+HDD)
Exclusive Cooler Boost technology
Matrix display expands the vision for extreme gaming experience
Exclusive Audio boost design for crystal clear audio fidelity
Top quality audio with sound blaster cinema
Exclusive MSI Super-Charger function
Source : www.msi.com
Download MSI GP70 2PE Leopard Notebook Drivers Windows 8.1 64bit