You can upgrade the Endpoint Security Client by doing one of the following:
By utilizing the Endpoint Security Client Update option. For more information, see ZSC Update.
By running the new install executable (the default name is setup.exe) with the STUPGRADE=1 switch activated, on each client machine.
By running an MSI uninstall of the current Endpoint Security Client and running a new installation (MSI cannot perform upgrades).
Open the new installation package for the Endpoint Security Client, then right-click setup.exe.
Right-click the shortcut, then click.
At the end of the Target field, after the quotes, press the Spacebar once to insert a space, then type /V“STUPGRADE=1”
Example: “C:\Documents and Settings\euser\Desktop\CL-Release-3.2.455\setup.exe” /V“STUPGRADE=1”.
Double-click the shortcut to launch the upgrade installer.