You'll need a new Product Key in order to install XP Pro
on another computer. You cannot use the same Product
Key with two different computers.
Additional Licenses for Windows XP Professional
http://www.microsoft.com/windowsxp/pro/howtobuy/addlic.asp
If you perform the upgrade procedure correctly, then your
files and programs should remain intact. However, it would
be prudent to perform a backup of your important files just in
case you encounter a revelation of "Murphy's Law".
1. Purchase the conventional "Retail Upgrade Version" of Windows XP Pro.
2. Uninstall any third-party antivirus or firewall programs.
3. Disconnect all peripheral hardware devices, but not the monitor, keyboard or mouse.
4. While at your XP Home desktop screen, insert the XP Pro CD in the CD drive.
5. Select the default "Upgrade" option.... DO NOT SELECT "New Installation".
6. Defrag your drive after upgrading.
7. Reinstall your antivirus program & turn-on the firewall.
8. Visit the Windows Update website and download the necessary updates.
--
Carey Frisch
Microsoft MVP
Windows XP - Shell/User
Be Smart! Protect your PC!
http://www.microsoft.com/security/protect/
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|I have XP Home on one computer and XP Pro on others. Can I just install XP
| Pro over XP Home as an install/repair rather than wipe everything off the
| drive, reformat, install XP Pro and then install all the applications?
| rtm