How to convert the manage to unmanage in SEP 12.1 Ru2, is it a same step like 11.0.7?
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How to convert Symantec Endpoint Protection (SEP) clients from managed to unmanaged without uninstalling and reinstalling
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The key here before going from managed to unmanaged is to set the client to Client Control so they have the ability to make changes to the client.
See this KBA
If the communication mode was not set for Client Control in the Symantec Endpoint Protection Manager policies during initial installation, you will not be able to change the local client policies after placing the new Sylink.xml file on the client.
This procedure changes the managed client to an unmanaged client, but will not change the policies that exist on the client. Ensure that you have the ability to change settings and run LiveUpdate on the client before changing the client to unmanaged. If you change the client to unmanaged without ensuring that you can change settings on the client , you may need to uninstall and then reinstall the client if you need to change settings in the future.
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