is it easy to uninstall xp pro and restore the original operating system and get rid of the validation nag screen.
Yes as you have the number on the sticker
I dont really want to format the drive as I will then have to try and find all the drivers and will lose the original software installed.
the pro and home XP drivers are exactly the same so just back up the drivers to another source before you start. driver backup software
Unfortunately you will need to reinstall any programs.