Hi I waS gOINT TO ASK

i HAVE TO LAPTOPS THAT ARE VERY OLD AND THEY NEED A;; THE HELP THEY CAN GET MAY YOU PLEASE HELP ME OVER EMAIL AND TELL ME WHAT I NEED TO KNOW ABOUT UNINSTALLING WINDOWS 98 AND THEN REINSTALLING IT AND CAN YOU TELL ME IF YOU CAN USE COMPUTER PARTS ON A LAPTOP OH I FORGOT IF YOU WANTED TO BUT WINDOWS XP WOULD IT HURT IT IF IT WILL I WILL PUT WINTDOWS98 ON