If you wish to wipe your drive, then the answer is...
it depends on the type of Windows XP disk you bought. There are three
kinds...
1. OEM
2. Upgrade
3. Full
If you have anything but the FULL version, you cannot wipe your drive. The
reason is is that during the installation process, after your disc is
wiped/partitioned/formatted, the upgrade will ask for proof of a prior
version of windows, and you would need a Win98 CD to verify prior OS.
The OEM is also, I believe, clean install only, and requires a prior OS to
install. I may be wrong on this part, as I have never used an OEM disc.
With OEM, you will also get no support from Microsoft. The support will
come from the vendor who sold you the OEM disc, so you must consider their
level of expertise when choosing this option.
Your best bet is to buy a FULL retail version. This will allow you to wipe
your drive and do a clean install without proof of a prior OS.
The 25 digit code that came with your computer is OEM. That code will not
work with any other version of windows, even as proof of ownership of a
prior version. When installation looks for proof of prior version, it will
look on the boot drive first. If it does not find a copy of Windows, the
installation routine will pause and ask you for proof of a prior version.
This is where you would temporarily swap the CD's. Setup will verify the
previous version, then prompt you to put the WinXP CD back in and finish
installation.
Even if you had the Restore disk set that came with your computer, it would
not qualify, generally speaking, as an upgrade path. Each OEM version of
windows on Restore Set CDs is different.
In short...best scenario is to buy the FULL version of Windows XP. I would
recommend downloading the network install of SP2, and slipstreaming it into
the installation CD. This will save you at lest a couple of hours on
installation (assuming you have broadband). There is a really neat little
utility called Autostreamer that makes slipstreaming painless. Here are a
couple of good links;
Explanation of Slipstreaming using Autostreamer:
http://www.neowin.net/forum/index.php?showtopic=188337
Autostreamer:
http://mhtools.knoware.nl/raptor/autostreamer/AutoStreamer.zip
Bobby