|You said you created a new directory for installation of XP Pro.|
Is that "new directory" a separate partition?
Do you get a dualboot prompt when starting up to select which XP you want to boot?
I must advise caution if you choose to follow advice in response 1. I would not install & run a foreign language "cleanup" program on an English language system, nor would I run any prog without a good understanding of the control instructions. "Italian is used, but by watching the windows, you can get the gist of how much is removed"
How dangerous is this unless you know exactly WHAT is being removed, not just how much.
Now to specifics. If you have created a dualboot with new windows in say D,E or some other partition you should know that the bootfiles for this are still written to your C drive so you cannot simply wipe the C drive without hosing your entire system.
Next, any/all programs that you previously installed in XP Home will cease to function if you wipe the C drive.
Answer the question first. Did you create a dualboot? Is XP Pro installed in it's own partition or is it in a separate file/directory of the C drive?
Goin' Fishin' (Some day)