If you have Engage '09 Update 6 (released May 20, 2010) or later installed, you can deactivate your Engage '09 serial number on a computer using the Deactivate feature as described below. If you have an earlier version of Engage '09 installed, you can either install the latest update and then deactivate using the instructions below, or you can uninstall Engage '09 to deactivate your serial number.
- Open Engage '09.
- Go to the Help menu.
- Click the Deactivate button as shown in the image below:
- Click the OK button to accept the warning that “This will deactivate this product on this machine.”