DirectX Error when I try and install a game



I tried to install my Need for Speed Most Wanted game today and I keep getting an Error Message that says I need Directx 9.0c but I already have it. I tried Running it in Windows 2000 Mode and all the other modes. The problem is after I switch it to Windows 2000 Mode it won’t even start the setup, can someone please help me. I have no idea what to do!