Symantec Endpoint is usually meant for enterprise. Ask her
administrator for help.
Even if you somehow manage to find the "disable" button, it will
likely not work if the administrator configures it correctly.
The other way is to uninstall it... but if it belongs to an
enterprise, it may be password protected to prevent it from being
uninstalled.
By the way, what program is she running to cause Symantec to
wake up?