Windows XP Pro Installation Over Itself Procedures

I have a Computer that I plan to upgrade with a new a Motherboard and CPU Chip.

I currently have an AMD Athlon 1.4 GHZ CPU Chip, and I will be buying either an AMD Athlon 2.8 or an Intel Pentium 4 2.8 CPU CHip.

The Computer is currently running Windows XP Pro SR1, and I would really like to keep all of the Windows XP Pro, Systems and Applications Settings, and the installed Programs intact.

What is the correct way that I can install Windows XP over itself after I upgrade with the Computer's new Hardware Configuration.

I know that my Computer's System Hardware Components are being modified, but there has to be a way that I can install Windows XP over itself without loosing all of my installed Programs and Applications.

Is there a Sub-Group in the Windows XP Pro System's Registry Settings that I can delete so when I reboot the Computer after I have installed the new Hardware, the Windows XP Pro Operating System will find all of the Computer's new Hardware?

I really do not want to re-install all of the Windows XP Pro Systems and Applications.

My Wife used the Internet Explorer's Inline AutoComplete alot, where she just types in the beginning character or characters during a search and the whole word or word will then appear.

I do not want to lose the hundreds of Internet Search Pharses that she has been using.

Jonathan


Jonathan