Third-party security software removal in Endpoint Protection 14

The following table lists the third-party security products that the Symantec Endpoint Protection client installation package can remove. The
Automatically uninstall existing third-party security software
option in the Client Install Settings dialog box removes these products.
Security products that are not in the supported products list can be removed using the SEPprep tool.
List of third-party security products that the Client Installation Wizard removes
Version
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14.3 RU1
14.3 MP1
In 14.3 MP1 the
Automatically uninstall existing third-party security software
option was removed from the Symantec Endpoint Protection Manager. Instead, use the TPAR tool that is located in the Tools/TPAR folder of the Symantec Endpoint Protection download folder. 
The readme is located in:
If you have a 14.3 MP1 Symantec Endpoint Protection Manager and you need to create an installation package for a 14.0 to 14.3 client, you can display and use the
Automatically uninstall existing third-party security software
option by adding
scm.uninstall.thirdparty.security.software.enabled=true
to the conf.properties file and then restarting the management server service.
14.0 to 14.3
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