was - DO NOT Connect the bell system yet
If you currently use Millennium Suite version 4.8 or older, uninstall it using the Windows Add/Remove utility. Your schedule and playlist files will not be deleted.
DO NOT Connect the bell system yet === Unplug or power down the bell system during software installation. The Chime Master USB interface and drivers have passed the Windows Hardware Certification process and are digitally signed for easy installation with current versions of Windows. They will be installed in the Windows Driver Store when the program installs.
=== Disable antivirus ===