According to your system configuration it might be due to many different factors.
I will provide below a list of the most efficient fixes in this kind of situation.
But if the issue persists I would like to ask you some details, a description of your system and if there is an error message a particular event, a loading screen, a crash...
- Upadating your drivers, video cards, windows updates...
- Run the game in compatibility mode
- Launch the game with administrator privileges
- Change//Adjust the resolution / launch the game on widowed mode (Alt + Enter)
Also here are the Minimum System Requirements
- OS: Windows XP (SP3), Windows Vista, Windows 7
- CPU: Intel Core 2 Duo 2.0 GHz or AMD Athlon X2 64 2.4 GHz
- RAM: 1.5 GB Windows XP / 2.0 GB Windows Vista and Windows 7
- Disc Drive: 8x or faster DVD drive
- Hard Drive: At least 8 GB free space
- Video: DirectX 9.0c compatible video card (see description below)
- Sound: DirectX 9.0c compatible sound card
Video card must be 256 MB or more and contain one of these Shader Model 3.0 compatible chipsets:
- ATI Radeon X1950, HD 2000/3000/4000/5000 series or above
- Nvidia Geforce 7/8/9/100/200 series or above
