If you use the email login I fear such things can happen. Sim City 4 is pretty dated but I can't tell if you patched and more using a guide like http://community.simtropolis.com/forums/topic/65165-guide-running-simcity-4-on-windows-8/
Hello all- I've installed an old program (Sim City 4) onto Windows 8. When I try to run it, the User Account Control window pops up asking me if I will allow the program to make changes to the computer. Only the 'no' option is available. As far as I know, I'm logged in? I've tried 'running as administrator' and still the same result. Does anyone know how I'm able to highlight the 'yes' box and proceed? Thanks in advance!