A. All XP installation CD-ROMs are bootable. As a result, Microsoft has removed the ability to create boot disks from the CD-ROM. However, Microsoft has added downloadable files to its Web site that you can use to create XP boot disks:

You can't use XP Home Edition boot disks with XP Pro or vice-versa, and you can use boot disks only for new installations, not to initiate an upgrade.