microsoft.public.windowsxp.security_admin

good day to you good buddies.....
please is anyone out there....
i have been installing this update over...and over...and over again
but windows xp and automatic security updates are not taking...
looked in new programs and it is there...but the security shield is still
there everytime i boot up and shutting down at night its still there.
what to do
thanks for all your help...everyone who answers...appreciated
lissjennings