Uninstall Blocking Shares prior to Reboot

Symantec Endpoint Protection 12.1.6 MP6

I am silently removing the clients from many machines.  It successfully removes SEP, however users lose connectivity to their network shares until the machine is rebooted.

My question is, what feature of SEP causes the disconnect?

Is it the teefer2 driver?

What feature could I remove in advance (i.e., Network Threat Protection) in SEPM that would eliminate the share disconnect after SEP is uninstalled?

Thanks for the help!