Disable SepMasterService Automatic start
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Disable SepMasterService Automatic start


Article ID: 229698


Updated On:


Endpoint Protection


You want to prevent SEP service  from starting automatically at boot for test purpose.


You can use smc -stop if this is not enough and need to totally disable SEP service from running:

Disable Tamper protection as per : 
Protecting Symantec Endpoint Protection processes and resources with Tamper Protection

Navigate to [HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\SepMasterService]

Set the Start to 4 as Disabled so next boot the Service won't start automatically.

Registry values

Each value stands for the following:

  • 2 = Automatic
  • 3 = Manual
  • 4 = Disabled