Yes, SylinkReplacer is a very good tool.
SylinkReplacer:
https://www-secure.symantec.com/connect/downloads/sylinkreplacer-tool-connecting-sep-clients-sepm
SEP password registry info:
HKEY_LOCAL_MACHINE\SOFTWARE\Symantec\Symantec Endpoint Protection\SMC
Change the value for SmcGuiHasPassword from 1 to 0
Stop, SMC.EXE and restart SMC.EXE.
Hope that helps!