You can do one of two things:
#1:
Go out and purchase a "Full Version" of Windows XP Pro
and perform a "Repair Install".
How to Perform a Windows XP Repair Install
http://www.michaelstevenstech.com/XPrepairinstall.htm
[Courtesy of MS-MVP Michael Stevens]
Or
#2:
How to Uninstall Windows XP and Revert to a Previous Operating System
http://support.microsoft.com/default.aspx?scid=kb;en-us;303661
How to Use the Fdisk Tool and the Format Tool to Partition or Repartition a Hard
Disk
http://support.microsoft.com/default.aspx?scid=kb;EN-US;255867
1. Delete the Windows XP partition.
2. Create a new partition.
3. Format the new partition.
4. Install your desired Operating System.
--
Carey Frisch
Microsoft MVP
Windows XP - Shell/User
Be Smart! Protect your PC!
http://www.microsoft.com/security/protect/
--------------------------------------------------------------------------------------------
|I downloaded windows xp professional on my other computer and was unable to register it, message said not a
valid program, unrecognized this came from the previous owner. now i can't get into the computer to delete xp,
is there a way around this. it was downloaded into a emachine