Reinstall xp to the same computer

[Guest]

I am thinking of reinstall xp. The version I have is
update. How do I convince it to install to a newly
formatted disk? Won't it think that it is a new install
and not an upgrade?

 

[Jupiter Jones [MVP]]

It will install with no problems.
At some point you will be asked to insert qualifying media.
Then insert your previous operating system CD for a few minutes.