1. Have you previously installed the Crysis 2 PC demo?
2. Have you uninstalled the demo before installing Crysis 2 retail?
3. Did you change the path for the default installation and if so, where to?
4. Which Operating System are you using? (Example: Win 7, 64-bit)
5. Where did you purchase the game from – EADM, Steam, Retail or another DD partner?
6. Can you provide the MD5 checksum for the Crysis2.exe in the game directory?
7. Which virus scanner software are you using?
1. yes
2. yes
3. no
4.win 7- 64 bit
5. Steam - and my promo code still doesnt work

6.dunno where
7. avast free 6.0.1000