I want to make an UNMANAGED Client into a Managed Client SEP 12.1.2015 2015

I want to turn an unmanaged client into a managed client. I have copied the Sylink.xml to the following directory

\\PCNAME\c$\Program Files (x86)\Symantec\Symantec Endpoint Protection

I have restarted the machine since SEP no longer gives us any option to restart services.

After the restart the PC was STILL NOT managed even though I copied the Sylink over.

Where am I going wrong here?

Windows 7 64 BIT PC.

SEO 12.1.2015 2015

I do not want to upgrade just yet, but I do want to make this client managed, this is going to be part of our standard going forward.

Thank you