You'll have to purchase a new "Full Version" of Windows XP Professional
and perform a "Repair Install" using the new Windows XP Pro CD and Product Key
that comes with it. (You cannot simply change the Product Key)
How to Perform a Windows XP Repair Install
http://www.michaelstevenstech.com/XPrepairinstall.htm
If you wish to install Windows XP Home Edition, then you'll
need to perform a "Clean Install" which requires a drive reformat.
Clean Install Windows XP
http://www.michaelstevenstech.com/cleanxpinstall.html
[Courtesy of MS-MVP Michael Stevens]
--
Carey Frisch
Microsoft MVP
Windows XP - Shell/User
Be Smart! Protect Your PC!
http://www.microsoft.com/athome/security/protect/default.aspx
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:
| I picked up a computer with a bootleg copy of XP pro. How can I install a
| new version of XP home or Pro?