for Total Overdose is in your user profile's Documents folder: %USERPROFILE%\Documents\Total Overdose\savegames\ Registry Settings: Some configuration data is also stored in the registry at HKEY_CURRENT_USER\Software\Eidos\Total Overdose\ Installing a 100% Save Game
Based on our analysis, we recommend the following:
C:\Documents and Settings\<username>\Application Data\Total Overdose
C:\Users\[YourUserName]\Documents\Total Overdose