I want thank you for downloading the game. This should help you out.
If you have a 32-bit computer then look in C:Program File
if you have a 64-bit computer then check here C:Program File(x86) 64-bit
If you unsure on what type of PC you have. On your computer go to the control panel then click on system and security. After that click system it should tell what type of PC you have.