If you disable Tamper Protection with a policy change in the SEPM, force a policy update by right-clicking on the Symantec shield icon on the taskbar and choosing Update Policy.
Stop the Symantec Management Service. As an administrator, press Windows+R to open the Run box, or select Run from the Start Menu. Enter the command smc -stop to stop the service. You may see a message from Windows that virus protection has been disabled.
Navigate to the following folder and delete its contents Do not delete the folder itself.