Let's keep this in the .setup_deployment group, OK?
Upgrade will not clean out Windows and Program Files, but a clean install will. A clean install will not preserve all your application settings for things like Internet Explorer and Outlook Express.
I recommend you use the file and settings transfer wizard on your current install, but also have a look at www.tomsterdam.com for advice on how to backup and transfer your Outlook Express folders and settings. FAST doesn't always do the right thing with Outlook Express if you have a complicated setup, but tomsterdam has a clean procedure that will assure you that everything will transfer from the registry and from your folders.
Then do a clean install and restore your files and settings with FAST. It is a very good idea to do a separate backup of your My Documents and other such files just in case anything goes wrong with FAST. The best thing about FAST is preserving your registry settings.
FAST does not preserve your application installs, but that's OK since you don't have to reinstall them if you don't want to. If you ever do, your application settings will be preserved in your registry hive.
Kent W. England, MS MVP for WinXP Networking
> For upgrading to XP, I would like to preserve all user files (those in \my
> documents) and personal settings if possible, and I don't want to keep any
> program files and anything under windows directory. What should I use:
> upgrade or clean install?
> I understand upgrade will keep all user files and personal setting, but will
> it wipe out everything in 'windows' and 'program files' and system files
> under c:\ cleanly? I understand clean install can wipe out everything in
> 'windows' and 'program files' and system files under c:\ cleanly, but can it
> preserve user files and personal settings?