Uninstall the Remote Administration Client (RAC) software
Uninstall the RAC software before installing other nShield software, for example before installing Security World software or a newer version of RAC.
Uninstall RAC on Windows
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Sign in to Windows as a user who has rights to install and uninstall software on the machine. 
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Remove the Remote Administration Client and CyberJack Base Components via Control Panel > Programs and Features (depending on your version of Windows). 
The Remote Administration Client program is removed from the Windows Start Menu.