One cannot just install a new Product Key with a trial version
of XP. You'll have to purchase a "full version" of XP Pro, then perform
a "repair install" using the new XP CD and Product Key.
A "repair install" will retain your programs & files, if performed correctly.
How to Perform a Windows XP Repair Install
http://michaelstevenstech.com/XPrepairinstall.htm
[Courtesy of Michael Stevens, MS-MVP]
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Carey Frisch
Microsoft MVP
Windows XP Shell/User
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| Do you know if I will lose all my build configurations if
| I install a 120-day free trial version and then install
| the license key of a fully licensed version if I decide to
| keep the XP Pro version??? THANKS!