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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?
The requirement to use an upgrade version is to *own* a previous
qualifying version's installation CD (with an OEM restore CD, see
below), not to have it installed. When setup doesn't find a
previous qualifying version installed, it will prompt you to
insert its CD as proof of ownership. Just insert the previous
version's CD, and follow the prompts. Everything proceeds quite
normally and quite legitimately.
You can also do a clean install if you have an OEM restore CD of
a previous qualifying version. It's more complicated, but it
*can* be done. First restore from the Restore CD. Then run the XP
upgrade CD from within that restored system, and change from
Upgrade to New Install. When it asks where, press Esc to delete
the partition and start over.