Windows 7: unable to play nfs most wanted

Hello,
I unable to play nfs most wanted error "speed.exe has stopped working" some times it starts but most of the time im getting that error please help me. nfs underground 2 is working fine but not this game i have tried many things like run as administrator, also tried all setting from properties Compatibility tab, run in safe mode nothing works for me. My computer specifications:

Operating system - windows 7 ultimate x64
Processor - Intel Pentium 4 CPU 2.66 GHz
RAM - 3 GB

Please help me to play it



Thanks

I tried google for the error and it gives me conflicting answers so, before I accuse of anything, I am just going to say this...

Uninstall game, make sure you have install steam if downloaded from it, make sure you install it correctly and completely and try again.