am sorry ive type an incomplete data, am not connected to a network.. am only using a single computer a Window XP, i wanted to prevent other user of my computer such as my brother to install other program in my computer so i created a different username for my bro. but he keeps on installing other program.. they dont know the linux OS yet so i dont bother to change my OS but i prefer using linux to set some permission but there are others who uses my computer and dont know much bout linux so the boot goes to windows as you open the computer..