XP PRO DEFRAG COMPRESSING FILES

HI IN A ARTICLE LAST WEEK IT WAS SAD THAT SCANDISK FOR XP COMPRESS FILES
AND IT HAS ON MY XP PRO
SO DOES DEFRAG. GOOD ARTICLE BUT I CAN?T FIND A WAY TO RECONFIGURE IT

HELP

THAN I?LL NEED LOCATE ALL THE COMPRESSED FILES AND EXPAND THAN

THANK YOU