Upgrading to Windows XP

I currently have Windows 2000 on my system and just purchased Windows XP Pro. However, I guess I did not read the box and purchased full install rather than upgrade. Can this be used to upgrade as well? I do not want to format my drive if I don't have to.

 

I took just a quick look at this link page but it looks like you wouldn't have been able to upgrade from Win2000 even with the upgrade. you might want to take a better look.
http://www.microsoft.com/windowsxp/pro/upgrading/matrix.mspx

 

To XP Home, no. To XP Pro, yes.

 

Does the full install of XP Pro have an upgrade option?

 

Yes.

 

My bad

 

Got this info from Eric's site, link at the bottom
Clean Installation Preferred
When benchmarking Windows XP, Microsoft strongly recommends a clean installation using NTFS. There are several reasons why performance for a clean installation will tend to be superior to that for upgraded systems. An upgraded system will constrain the placement of files and file system data. The old disk format may not use an optimal file system cluster size. In a clean installation, the placement of file system data on the disk and the internal organization of that data can be optimized, resulting in a smaller system footprint and fewer and faster I/Os when using the system.
When performing a clean install, Microsoft recommends that NTFS be used and that the system be installed in a single partition on each disk. Under Windows XP, big partitions are better managed than in previous versions of Windows. Forcing installed software into several partitions on the disk necessitates longer seeks when running the system and software.
If you do choose an upgrade from Windows 2000 or Windows 9x, you may be working with a FAT32 file system. Performance will generally be better if the file system is left as it is, rather than converted to NTFS. A partition converted from FAT32 to NTFS may have to use 512-byte clusters, rather than 4096-byte or 8192-byte clusters, which can result in a higher number of fragmented files.
http://www.tweakhound.com/xp/installxp/installXP1.htm