This is an old internet myth. Renaming the .exe does not fix crashes. In fact, some anti-cheat and save systems check for the exact filename "GoW.exe". Renaming will cause save file failures.
file launches but then crashes or "stops working," try these standard Windows compatibility steps: Run as Administrator : Right-click in your game folder, select Properties Compatibility , and check Run this program as an administrator Compatibility Mode GoW.exe