To uninstall Email Marketer from your computer, you will need to shutdown all Email Marketer program instances and follow one of the following two ways to uninstall Email Marketer:
Go to Start -> Programs -> Email Marketer Business Edition -> Uninstall Email Marketer Business Edition and follow the guides.
Go to Start -> Settings -> Control Panel. In the Control Panel window, double click Add/Remove Programs. Find and select Email Marketer Business Edition, click Modify / Remove and follow the guides.
Note: It is strongly recommended that you backup your project files before before uninstalling the program.