An error occurred while analyzing your current settings. Service FIMSynchronizationService was not found on computer '.'.
This can happen if the server where AADConnect is being installed on has remnants of a Windows Azure Active Directory Sync (DirSync) installation in the registry. This may happen even if DirSync has been uninstalled previously.
- Open RegEdit and navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products
- Delete the 0C3FB95F67119A143800F5C52A83CDC0 key if it exists
- Delete the 3F1C9EE38DDCE34478C59E1C0FE14BA5 key if it exists
- Close RegEdit and retry your configuration
Credit for making me discover this goes to my super-awesome boss, Tom Pacyk.