You can uninstall the Windows client in the following ways:
By using the Windows Control Panel to remove an application, typically Programs and Features.
By configuring and deploying a custom client installation package that removes the Symantec Endpoint Protection client (as of 14). Only use this method if uninstalling with the Windows Control Panel does not work.
If the Symantec Endpoint Protection client software uses a policy that blocks hardware devices, the policy blocks the devices after you uninstall the software. If you do not disable the device control by policy before you uninstall, use the Windows Device Manager to unblock the devices.
To uninstall the Symantec Endpoint Protection client for Windows
In the console, on the Admin page, click Install Packages, and then click Client Install Settings.
Under Tasks, click Add Client Install Settings.
If you have previously created a custom client installation settings configuration, you can modify it under Tasks, and then click Edit Client Install Settings. Modifying an existing custom configuration does not modify previously exported install packages.
On the Basic Settings tab, check Remove existing Symantec Endpoint Protection client software that cannot be uninstalled.