Upgrading to Windows XP Professional You can upgrade most Windows client operating systems directly to
Windows XP Professional. If you upgrade instead of doing a new installation,
you will not lose the existing settings and applications on the partition.
When preparing for an upgrade, you should first complete the tasks listed on the
pre-installation checklist that appears in the Planning Your Installation section
of this module, and then prepare your system for the upgrade.
Preparing for an upgrade consists of these additional tasks:
Identifying the upgrade path
Preparing your system
When you upgrade, you can choose an Express Upgrade, or the Custom option.
The Custom option enables you to select the partition on which Windows XP
Professional will be installed, and to select special other non-standard options
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