If you have been using an Omron HJ720 to date, you will need to uninstall your software.
1. Right click on the Walkingspree icon in the lower right taskbar and choose exit/quit.
2. Go to your Start Menu and find the Walkingspree folder and Uninstall the Walkingspree software.
3. Download the new Omron HJ324 software at http://members.walkingspree.com/setup (select the link for your device)