crysis crashes when i try to play campaign
my specs

Operating System: Windows 7 Home Premium 32-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.120330-1504)
Language: English (Regional Setting: English)
System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: To be filled by O.E.M.
BIOS: BIOS Date: 03/09/12 21:27:38 Ver: 04.06.05
Processor: Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz (4 CPUs), ~3.8GHz
Memory: 8192MB RAM
Available OS Memory: 3562MB RAM
Page File: 1724MB used, 5397MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: 96 DPI (100 percent)
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 32bit Unicode