Hello, the solution is very easy. Run the game -> then got to windowsa (win key) -> then press alt+ctr+del -> choose "Processes" tab -> choose simcity4.exe -> press RMB (right mouse button) -> Set Affinity... -> untick all CPU except of CPU 0 (this should be ticked) -> click OK -> close Win. Task Mgr. -> go back to SimCity 4 -> say bye bye to CTDs , You must repeat this action each time you are launching the Simcity 4