Make sure your rig is ready for the 49 GB installation. According to the Official Activision Support page , a 10 MB connection can take up to 11 hours, so plan accordingly!
For a safe and verified installation, we recommend using official digital storefronts:
Windows 7 64-Bit / Windows 8 64-Bit / Windows 8.1 64-Bit Processor: Intel® Core™ i3-530 @ 2.93 GHz / AMD Phenom™ II X4 810 @ 2.80 GHz Memory: 6 GB RAM Graphics: NVIDIA® GeForce® GTS 450 @ 1 GB / ATI® Radeon™ HD 5870 Storage: 55 GB available space Where to Get It