making a hardware profile in windowXP

IF I MADE A HARDWARE PROFILE N GIVE IT NAME PROFILE 2 AND IN PROFILE 2 I DISABLE LAN CARD
AND I HAVE 3 USER A/C .BUT WHEN I REBOOT THE LAPTOP AND SELECTED THE PROFILE 2 IT SHOWS ALL 3 USER A/C.THEN WHAT IS BENIFITE MAKING A HARDWARE PROFILE?